Subtract 48/42 from 9/70, Solve 9/70

Subtract 48/42 from 9/70

1^st number: 9/70, 2^nd number: 1 6/42

9/70 - 48/42 is -71/70.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
9/70 = 9 × 3/70 × 3 = 27/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
48/42 = 48 × 5/42 × 5 = 240/210
Subtract the two like fractions:
27/210 - 240/210 = 27 - 240/210 = -213/210
After reducing the fraction, the answer is -71/70

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