Subtract 21/27 from 75/30
1st number: 2 15/30, 2nd number: 21/27
75/30 - 21/27 is 31/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
75/30 = 75 × 9/30 × 9 = 675/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
21/27 = 21 × 10/27 × 10 = 210/270 - Subtract the two like fractions:
675/270 - 210/270 = 675 - 210/270 = 465/270 - After reducing the fraction, the answer is 31/18
- In mixed form: 113/18
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