Subtract 63/98 from 21/45
21/45 - 63/98 is -37/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 45 × 98 = 4410,
21/45 = 21 × 98/45 × 98 = 2058/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
63/98 = 63 × 45/98 × 45 = 2835/4410 - Subtract the two like fractions:
2058/4410 - 2835/4410 = 2058 - 2835/4410 = -777/4410 - After reducing the fraction, the answer is -37/210
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