Subtract 45/28 from 36/72
1st number: 36/72, 2nd number: 1 17/28
36/72 - 45/28 is -31/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
36/72 = 36 × 7/72 × 7 = 252/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
45/28 = 45 × 18/28 × 18 = 810/504 - Subtract the two like fractions:
252/504 - 810/504 = 252 - 810/504 = -558/504 - After reducing the fraction, the answer is -31/28
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