Subtract 20/16 from 3/70, Solve 3/70

Subtract 20/16 from 3/70

1^st number: 3/70, 2^nd number: 1 4/16

3/70 - 20/16 is -169/140.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 70 × 8 = 560,
3/70 = 3 × 8/70 × 8 = 24/560
Likewise, for the 2nd fraction, since 16 × 35 = 560,
20/16 = 20 × 35/16 × 35 = 700/560
Subtract the two like fractions:
24/560 - 700/560 = 24 - 700/560 = -676/560
After reducing the fraction, the answer is -169/140

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