Subtract 28/36 from 21/10
1st number: 2 1/10, 2nd number: 28/36
21/10 - 28/36 is 119/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 10 × 18 = 180,
21/10 = 21 × 18/10 × 18 = 378/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
28/36 = 28 × 5/36 × 5 = 140/180 - Subtract the two like fractions:
378/180 - 140/180 = 378 - 140/180 = 238/180 - After reducing the fraction, the answer is 119/90
- In mixed form: 129/90
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