Subtract 20/72 from 18/10
1st number: 1 8/10, 2nd number: 20/72
18/10 - 20/72 is 137/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
18/10 = 18 × 36/10 × 36 = 648/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Subtract the two like fractions:
648/360 - 100/360 = 648 - 100/360 = 548/360 - After reducing the fraction, the answer is 137/90
- In mixed form: 147/90
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