Subtract 20/56 from 42/30
1st number: 1 12/30, 2nd number: 20/56
42/30 - 20/56 is 73/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
42/30 = 42 × 28/30 × 28 = 1176/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
20/56 = 20 × 15/56 × 15 = 300/840 - Subtract the two like fractions:
1176/840 - 300/840 = 1176 - 300/840 = 876/840 - After reducing the fraction, the answer is 73/70
- In mixed form: 13/70
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