Subtract 28/35 from 15/45
15/45 - 28/35 is -7/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
15/45 = 15 × 7/45 × 7 = 105/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
28/35 = 28 × 9/35 × 9 = 252/315 - Subtract the two like fractions:
105/315 - 252/315 = 105 - 252/315 = -147/315 - After reducing the fraction, the answer is -7/15
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