Subtract 6/72 from 42/20
1st number: 2 2/20, 2nd number: 6/72
42/20 - 6/72 is 121/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
42/20 = 42 × 18/20 × 18 = 756/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
6/72 = 6 × 5/72 × 5 = 30/360 - Subtract the two like fractions:
756/360 - 30/360 = 756 - 30/360 = 726/360 - After reducing the fraction, the answer is 121/60
- In mixed form: 21/60
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