Subtract 6/72 from 42/28
1st number: 1 14/28, 2nd number: 6/72
42/28 - 6/72 is 17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
42/28 = 42 × 18/28 × 18 = 756/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
6/72 = 6 × 7/72 × 7 = 42/504 - Subtract the two like fractions:
756/504 - 42/504 = 756 - 42/504 = 714/504 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
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