Subtract 18/4 from 28/15
1st number: 1 13/15, 2nd number: 4 2/4
28/15 - 18/4 is -79/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
18/4 = 18 × 15/4 × 15 = 270/60 - Subtract the two like fractions:
112/60 - 270/60 = 112 - 270/60 = -158/60 - After reducing the fraction, the answer is -79/30
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