Subtract 4/98 from 28/30, Solve 28/30

Subtract 4/98 from 28/30

28/30 - 4/98 is 656/735.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 98 is 1470

Next, find the equivalent fraction of both fractional numbers with denominator 1470
For the 1st fraction, since 30 × 49 = 1470,
28/30 = 28 × 49/30 × 49 = 1372/1470
Likewise, for the 2nd fraction, since 98 × 15 = 1470,
4/98 = 4 × 15/98 × 15 = 60/1470
Subtract the two like fractions:
1372/1470 - 60/1470 = 1372 - 60/1470 = 1312/1470
After reducing the fraction, the answer is 656/735

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