Subtract 15/90 from 12/16
12/16 - 15/90 is 7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
12/16 = 12 × 45/16 × 45 = 540/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
15/90 = 15 × 8/90 × 8 = 120/720 - Subtract the two like fractions:
540/720 - 120/720 = 540 - 120/720 = 420/720 - After reducing the fraction, the answer is 7/12
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