Subtract 14/7 from 49/90, Solve 49/90

Subtract 14/7 from 49/90

1^st number: 49/90, 2^nd number: 2 0/7

49/90 - 14/7 is -131/90.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
49/90 = 49 × 7/90 × 7 = 343/630
Likewise, for the 2nd fraction, since 7 × 90 = 630,
14/7 = 14 × 90/7 × 90 = 1260/630
Subtract the two like fractions:
343/630 - 1260/630 = 343 - 1260/630 = -917/630
After reducing the fraction, the answer is -131/90

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