-2/5×3/4+5/7×-3/4×1/5
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Step-by-step explanation:
= -2/5 × 3/4 + 5/7 × -3/7 × 1/5.
= LCM of 5,4,7,7,5 = 140.
= -2/5 = -58/140.
= 3/4 = 105/140.
= 5/7 = 100/140.
= -3/7 = -60/140.
= 1/5 = 29/140.
= -58/140 × 105/140 + 100/140 × -60/140 × 29/140.
= -58/140 × 205/140 × -60/140 × 29/140.
= -1740/140 × -11890/140.
= -13630/140.
= 2726/29.
= 94/1.
= 94.
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hope it helps ...........
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