Question

Evaluate -12/5 +(-7/20) +3/14+1/7-1/10

Answer 1

hello
12/5-7/20+3/14+1/7-1/10
LCM=140
336-49+30+20-14/140
323/140

Answer 2

(-12/5) + (-7/20) + (3/14) + (1/7) - (1/10)
= (-12/5) - (7/20) - (1/10) + (3/14) + (1/7)
= - 12/5 - 7/20 - 1/10 + 3/4 + 1/7
= (- 336 - 49 - 14 + 30 + 20) / 140
= (-399 + 50) / 140
= - 349/140
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