Subtract 48/10 from 18/49, Solve 18/49

Subtract 48/10 from 18/49

1^st number: 18/49, 2^nd number: 4 8/10

18/49 - 48/10 is -1086/245.

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,
18/49 = 18 × 10/49 × 10 = 180/490
Likewise, for the 2nd fraction, since 10 × 49 = 490,
48/10 = 48 × 49/10 × 49 = 2352/490
Subtract the two like fractions:
180/490 - 2352/490 = 180 - 2352/490 = -2172/490
After reducing the fraction, the answer is -1086/245

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