Subtract 90/5 from 54/8
1st number: 6 6/8, 2nd number: 18 0/5
54/8 - 90/5 is -45/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
54/8 = 54 × 5/8 × 5 = 270/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
90/5 = 90 × 8/5 × 8 = 720/40 - Subtract the two like fractions:
270/40 - 720/40 = 270 - 720/40 = -450/40 - After reducing the fraction, the answer is -45/4
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