Subtract 12/10 from 25/49, Solve 25/49

Subtract 12/10 from 25/49

1^st number: 25/49, 2^nd number: 1 2/10

25/49 - 12/10 is -169/245.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 49 × 10 = 490,
25/49 = 25 × 10/49 × 10 = 250/490
Likewise, for the 2nd fraction, since 10 × 49 = 490,
12/10 = 12 × 49/10 × 49 = 588/490
Subtract the two like fractions:
250/490 - 588/490 = 250 - 588/490 = -338/490
After reducing the fraction, the answer is -169/245

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