Subtract 45/6 from 72/40
1st number: 1 32/40, 2nd number: 7 3/6
72/40 - 45/6 is -57/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 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 6 × 20 = 120,
45/6 = 45 × 20/6 × 20 = 900/120 - Subtract the two like fractions:
216/120 - 900/120 = 216 - 900/120 = -684/120 - After reducing the fraction, the answer is -57/10
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