Subtract 21/6 from 27/10
1st number: 2 7/10, 2nd number: 3 3/6
27/10 - 21/6 is -4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
27/10 = 27 × 3/10 × 3 = 81/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30 - Subtract the two like fractions:
81/30 - 105/30 = 81 - 105/30 = -24/30 - After reducing the fraction, the answer is -4/5
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