Subtract 28/10 from 15/30
1st number: 15/30, 2nd number: 2 8/10
15/30 - 28/10 is -23/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
15/30 = 15 × 1/30 × 1 = 15/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
28/10 = 28 × 3/10 × 3 = 84/30 - Subtract the two like fractions:
15/30 - 84/30 = 15 - 84/30 = -69/30 - After reducing the fraction, the answer is -23/10
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