Subtract 12/30 from 72/42
1st number: 1 30/42, 2nd number: 12/30
72/42 - 12/30 is 46/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
12/30 = 12 × 7/30 × 7 = 84/210 - Subtract the two like fractions:
360/210 - 84/210 = 360 - 84/210 = 276/210 - After reducing the fraction, the answer is 46/35
- In mixed form: 111/35
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