Subtract 18/30 from 72/40
1st number: 1 32/40, 2nd number: 18/30
72/40 - 18/30 is 6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
18/30 = 18 × 4/30 × 4 = 72/120 - Subtract the two like fractions:
216/120 - 72/120 = 216 - 72/120 = 144/120 - After reducing the fraction, the answer is 6/5
- In mixed form: 11/5
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