Question

Q-13. Find the product of:
a. 3/5*15/16*4/7
b. 4/9*15
C. 43/12*21​

Answer 1

Answer:

$\frac{3}{5} \times \frac{15}{16} \times \frac{4}{7} \\ = \frac{3}{ _{1 \: \: \: } \cancel 5} \times \frac{ \cancel{ 15}_{ \: \: \: 3} }{ \cancel{ 16} _{ \: \: \: 4} } \times \frac{ \cancel{ 4} _{ \: \: \: 1}}{7} \\ \boxed{ = \large \underline{ \underline{ \bf \frac{9}{28} }}} \\ \\ \frac{4}{9} \times 15 \\ = \frac{4}{ _{3 \: \: \: } \cancel 9} \times \cancel{ 15 } _{ \: \: \: 5} \\ = \frac{4}{3} \times 5 \\ \boxed{ = \large \underline{ \underline{ \bf \frac{20}{3} }}} \\ \\ \frac{43}{12} \times 21 \\ = \frac{43}{ _{4 \: \: \: } \cancel{ 12}} \times \cancel{ 21} _{ \: \: \: 7} \\ \boxed{ = \large \underline{ \underline{ \bf \frac{301}{4} }}}$