Subtract 20/90 from 72/50
1st number: 1 22/50, 2nd number: 20/90
72/50 - 20/90 is 274/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
72/50 = 72 × 9/50 × 9 = 648/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
20/90 = 20 × 5/90 × 5 = 100/450 - Subtract the two like fractions:
648/450 - 100/450 = 648 - 100/450 = 548/450 - After reducing the fraction, the answer is 274/225
- In mixed form: 149/225
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