Subtract 72/7 from 42/2
1st number: 21 0/2, 2nd number: 10 2/7
42/2 - 72/7 is 75/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
42/2 = 42 × 7/2 × 7 = 294/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
72/7 = 72 × 2/7 × 2 = 144/14 - Subtract the two like fractions:
294/14 - 144/14 = 294 - 144/14 = 150/14 - After reducing the fraction, the answer is 75/7
- In mixed form: 105/7
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