Subtract 45/72 from 15/49
15/49 - 45/72 is -125/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 49 × 72 = 3528,
15/49 = 15 × 72/49 × 72 = 1080/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
45/72 = 45 × 49/72 × 49 = 2205/3528 - Subtract the two like fractions:
1080/3528 - 2205/3528 = 1080 - 2205/3528 = -1125/3528 - After reducing the fraction, the answer is -125/392
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