7.
Simplify:
i) 8/14x5/4 x (-49)/15
+8/5 x 15/7
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2
Answer:
step by step
8/14x5/4x-49/115+8/5x15/7
= -7/3+24/7
= -49+72/21
= -121/121
answer is 121/121
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