Subtract 21/30 from 72/27
1st number: 2 18/27, 2nd number: 21/30
72/27 - 21/30 is 59/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
72/27 = 72 × 10/27 × 10 = 720/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
21/30 = 21 × 9/30 × 9 = 189/270 - Subtract the two like fractions:
720/270 - 189/270 = 720 - 189/270 = 531/270 - After reducing the fraction, the answer is 59/30
- In mixed form: 129/30
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