Subtract 15/72 from 42/7
1st number: 6 0/7, 2nd number: 15/72
42/7 - 15/72 is 139/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
42/7 = 42 × 72/7 × 72 = 3024/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Subtract the two like fractions:
3024/504 - 105/504 = 3024 - 105/504 = 2919/504 - After reducing the fraction, the answer is 139/24
- In mixed form: 519/24
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