Subtract 70/45 from 7/49, Solve 7/49

Subtract 70/45 from 7/49

1^st number: 7/49, 2^nd number: 1 25/45

7/49 - 70/45 is -89/63.

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,
7/49 = 7 × 45/49 × 45 = 315/2205
Likewise, for the 2nd fraction, since 45 × 49 = 2205,
70/45 = 70 × 49/45 × 49 = 3430/2205
Subtract the two like fractions:
315/2205 - 3430/2205 = 315 - 3430/2205 = -3115/2205
After reducing the fraction, the answer is -89/63

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