Subtract 28/40 from 72/98
72/98 - 28/40 is 17/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
72/98 = 72 × 20/98 × 20 = 1440/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
28/40 = 28 × 49/40 × 49 = 1372/1960 - Subtract the two like fractions:
1440/1960 - 1372/1960 = 1440 - 1372/1960 = 68/1960 - After reducing the fraction, the answer is 17/490
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