Subtract 10/30 from 72/20
1st number: 3 12/20, 2nd number: 10/30
72/20 - 10/30 is 49/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
72/20 = 72 × 3/20 × 3 = 216/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
10/30 = 10 × 2/30 × 2 = 20/60 - Subtract the two like fractions:
216/60 - 20/60 = 216 - 20/60 = 196/60 - After reducing the fraction, the answer is 49/15
- In mixed form: 34/15
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