Subtract 56/20 from 1/70, Solve 1/70

Subtract 56/20 from 1/70

1^st number: 1/70, 2^nd number: 2 16/20

1/70 - 56/20 is -39/14.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 70 × 2 = 140,
1/70 = 1 × 2/70 × 2 = 2/140
Likewise, for the 2nd fraction, since 20 × 7 = 140,
56/20 = 56 × 7/20 × 7 = 392/140
Subtract the two like fractions:
2/140 - 392/140 = 2 - 392/140 = -390/140
After reducing the fraction, the answer is -39/14

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