Subtract 9/72 from 7/98
7/98 - 9/72 is -3/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 98 × 36 = 3528,
7/98 = 7 × 36/98 × 36 = 252/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
9/72 = 9 × 49/72 × 49 = 441/3528 - Subtract the two like fractions:
252/3528 - 441/3528 = 252 - 441/3528 = -189/3528 - After reducing the fraction, the answer is -3/56
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