Subtract 20/18 from 72/10
1st number: 7 2/10, 2nd number: 1 2/18
72/10 - 20/18 is 274/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
72/10 = 72 × 9/10 × 9 = 648/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
648/90 - 100/90 = 648 - 100/90 = 548/90 - After reducing the fraction, the answer is 274/45
- In mixed form: 64/45
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