Subtract 2/20 from 90/27
1st number: 3 9/27, 2nd number: 2/20
90/27 - 2/20 is 97/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
90/27 = 90 × 20/27 × 20 = 1800/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
2/20 = 2 × 27/20 × 27 = 54/540 - Subtract the two like fractions:
1800/540 - 54/540 = 1800 - 54/540 = 1746/540 - After reducing the fraction, the answer is 97/30
- In mixed form: 37/30
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