Subtract 90/8 from 12/4
1st number: 3 0/4, 2nd number: 11 2/8
12/4 - 90/8 is -33/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
12/4 = 12 × 2/4 × 2 = 24/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
90/8 = 90 × 1/8 × 1 = 90/8 - Subtract the two like fractions:
24/8 - 90/8 = 24 - 90/8 = -66/8 - After reducing the fraction, the answer is -33/4
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