Subtract 72/40 from 80/36
1st number: 2 8/36, 2nd number: 1 32/40
80/36 - 72/40 is 19/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 36 × 10 = 360,
80/36 = 80 × 10/36 × 10 = 800/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
72/40 = 72 × 9/40 × 9 = 648/360 - Subtract the two like fractions:
800/360 - 648/360 = 800 - 648/360 = 152/360 - After reducing the fraction, the answer is 19/45
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