Subtract 4/10 from 12/49, Solve 12/49

Subtract 4/10 from 12/49

12/49 - 4/10 is -38/245.

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,
12/49 = 12 × 10/49 × 10 = 120/490
Likewise, for the 2nd fraction, since 10 × 49 = 490,
4/10 = 4 × 49/10 × 49 = 196/490
Subtract the two like fractions:
120/490 - 196/490 = 120 - 196/490 = -76/490
After reducing the fraction, the answer is -38/245

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