Subtract 10/45 from 70/49, Solve 1 21/49

Subtract 10/45 from 70/49

1^st number: 1 21/49, 2^nd number: 10/45

70/49 - 10/45 is 76/63.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205

Next, find the equivalent fraction of both fractional numbers with denominator 2205
For the 1st fraction, since 49 × 45 = 2205,
70/49 = 70 × 45/49 × 45 = 3150/2205
Likewise, for the 2nd fraction, since 45 × 49 = 2205,
10/45 = 10 × 49/45 × 49 = 490/2205
Subtract the two like fractions:
3150/2205 - 490/2205 = 3150 - 490/2205 = 2660/2205
After reducing the fraction, the answer is 76/63
In mixed form: 113/63

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