Subtract 20/30 from 42/5
1st number: 8 2/5, 2nd number: 20/30
42/5 - 20/30 is 116/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
42/5 = 42 × 6/5 × 6 = 252/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
20/30 = 20 × 1/30 × 1 = 20/30 - Subtract the two like fractions:
252/30 - 20/30 = 252 - 20/30 = 232/30 - After reducing the fraction, the answer is 116/15
- In mixed form: 711/15
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