Subtract 21/98 from 3/5
3/5 - 21/98 is 27/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 5 × 98 = 490,
3/5 = 3 × 98/5 × 98 = 294/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490 - Subtract the two like fractions:
294/490 - 105/490 = 294 - 105/490 = 189/490 - After reducing the fraction, the answer is 27/70
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