Subtract 21/63 from 30/98
30/98 - 21/63 is -4/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 63 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
30/98 = 30 × 9/98 × 9 = 270/882 - Likewise, for the 2nd fraction, since 63 × 14 = 882,
21/63 = 21 × 14/63 × 14 = 294/882 - Subtract the two like fractions:
270/882 - 294/882 = 270 - 294/882 = -24/882 - After reducing the fraction, the answer is -4/147
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