Subtract 15/98 from 21/10, Solve 2 1/10

Subtract 15/98 from 21/10

1^st number: 2 1/10, 2^nd number: 15/98

21/10 - 15/98 is 477/245.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 98 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 10 × 49 = 490,
21/10 = 21 × 49/10 × 49 = 1029/490
Likewise, for the 2nd fraction, since 98 × 5 = 490,
15/98 = 15 × 5/98 × 5 = 75/490
Subtract the two like fractions:
1029/490 - 75/490 = 1029 - 75/490 = 954/490
After reducing the fraction, the answer is 477/245
In mixed form: 1232/245

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