Subtract 4/18 from 70/49, Solve 1 21/49

Subtract 4/18 from 70/49

1^st number: 1 21/49, 2^nd number: 4/18

70/49 - 4/18 is 76/63.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 18 is 882

Next, find the equivalent fraction of both fractional numbers with denominator 882
For the 1st fraction, since 49 × 18 = 882,
70/49 = 70 × 18/49 × 18 = 1260/882
Likewise, for the 2nd fraction, since 18 × 49 = 882,
4/18 = 4 × 49/18 × 49 = 196/882
Subtract the two like fractions:
1260/882 - 196/882 = 1260 - 196/882 = 1064/882
After reducing the fraction, the answer is 76/63
In mixed form: 113/63

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