Subtract 75/10 from 54/90
1st number: 54/90, 2nd number: 7 5/10
54/90 - 75/10 is -69/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
54/90 = 54 × 1/90 × 1 = 54/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
75/10 = 75 × 9/10 × 9 = 675/90 - Subtract the two like fractions:
54/90 - 675/90 = 54 - 675/90 = -621/90 - After reducing the fraction, the answer is -69/10
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