Subtract 18/49 from 4/72
4/72 - 18/49 is -275/882.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 49 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 72 × 49 = 3528,
4/72 = 4 × 49/72 × 49 = 196/3528 - Likewise, for the 2nd fraction, since 49 × 72 = 3528,
18/49 = 18 × 72/49 × 72 = 1296/3528 - Subtract the two like fractions:
196/3528 - 1296/3528 = 196 - 1296/3528 = -1100/3528 - After reducing the fraction, the answer is -275/882
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