Subtract 42/28 from 10/72
1st number: 10/72, 2nd number: 1 14/28
10/72 - 42/28 is -49/36.
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,
10/72 = 10 × 7/72 × 7 = 70/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
42/28 = 42 × 18/28 × 18 = 756/504 - Subtract the two like fractions:
70/504 - 756/504 = 70 - 756/504 = -686/504 - After reducing the fraction, the answer is -49/36
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