Std-7 Maths chapter-2 | Gujarat Board GSEB Solutions

1. We learned addition and subtraction of fractions and decimal fractions as we learned in the next standard. 
2. Now we have learned to multiply and divide fractions and decimal fractions. 
3. We have learned the multiplication of fractions.  The multiplication of two fractions is done by multiplying the numerator by the numerator and the numerator by the denominator which can be written as follows. 
4. A fraction acts like a "part of" such as, 2 of 2 i.e., 2x = 1,
5. (a) The product of two pure fractions is less than both fractions.  (b) The product of pure and impure fractions is less than impure fraction and more than pure fraction.  Two |  The multiplication of impure fractions is greater than both fractions. 
6. Inverse fractions of fractions are found by reversing the denominator.  7. We saw how two fractions are divided. 
(a) To divide a whole number by a fraction, the whole number has to be multiplied by the inverse of the fraction. 
(b) To divide a fraction by an integer, the fraction must be multiplied by the whole number inverse. 
(c) When a fraction is to be divided by another fraction, the first fraction has to be multiplied by the inverse of the second fraction.

ધોરણ-7 પ્રકરણ-2 નાં દાખલાઓની ગણતરીના વિડિઓ જોવા લિંક પર ક્લિક કરો

સ્વાધ્યાય - 2.1

સ્વાધ્યાય - 2.2

સ્વાધ્યાય - 2.3

8. We also saw how the decimal number is multiplied.  To do this, first multiply the numbers by ignoring the decimal chin and then by counting the total decimal place, put the decimal point so that the multiplication also has the same decimal place.  4:13, 0.5 x 0.7 = 0.35. 
9. To multiply the decimal number by 10, 100 and 1000, the decimal point is zero after 1!  Move as much space to the right.  Thus, 0.53 x 10 = 5.3, 0.53 x 100 = 53, 0.53 x 1000 = 530. 
10. We also saw how to divide a decimal number. 
(a) Divide the decimal number by the whole number before ignoring the decimal point.  Then place the decimal point in the quotient in such a way that the divisor has the same number of digits after the decimal point.  For example, 8.4 + 4 = 2.1 Here we consider the divisor to be zero. 
(b) To divide the decimal number by 10, 100 and 1000, move the decimal point to the left as much as there is zero behind 1.  Thus, 23.9 + 10 = 2.39, 23.9 + 100 = 0.239, 23.9 + 1000 = 0.0239,
(c) To divide a divisor by two decimals, move the decimal point to both the divisor and the divisor to the right  (So ​​that the denominator becomes an integer) Now get the answer as (a).  E.g.  , 2.4 0.2 = 24+ 2 = 12.