Subtract 98/72 from 9/21
1st number: 9/21, 2nd number: 1 26/72
9/21 - 98/72 is -235/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
9/21 = 9 × 24/21 × 24 = 216/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
98/72 = 98 × 7/72 × 7 = 686/504 - Subtract the two like fractions:
216/504 - 686/504 = 216 - 686/504 = -470/504 - After reducing the fraction, the answer is -235/252
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