Subtract 1/72 from 70/49, Solve 1 21/49

Subtract 1/72 from 70/49

1^st number: 1 21/49, 2^nd number: 1/72

70/49 - 1/72 is 713/504.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528

Next, find the equivalent fraction of both fractional numbers with denominator 3528
For the 1st fraction, since 49 × 72 = 3528,
70/49 = 70 × 72/49 × 72 = 5040/3528
Likewise, for the 2nd fraction, since 72 × 49 = 3528,
1/72 = 1 × 49/72 × 49 = 49/3528
Subtract the two like fractions:
5040/3528 - 49/3528 = 5040 - 49/3528 = 4991/3528
After reducing the fraction, the answer is 713/504
In mixed form: 1209/504

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