Question

please use associative property and distributivity property ok and then solve the answer

Answer 1

2/5×-3/7-1/6×3/2+1/4×2/5
$take \: 2 \div 5 \:as \: common$
2/5{-3/7+1/4}-1/6×3/2
$- 3 \div 7 + 1 \div 4 = - 5 \div 28$
2/5×-5/28-1/6×3/2
-1/14-1/4=-9/28