Subtract 21/45 from 75/54
1st number: 1 21/54, 2nd number: 21/45
75/54 - 21/45 is 83/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 45 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
75/54 = 75 × 5/54 × 5 = 375/270 - Likewise, for the 2nd fraction, since 45 × 6 = 270,
21/45 = 21 × 6/45 × 6 = 126/270 - Subtract the two like fractions:
375/270 - 126/270 = 375 - 126/270 = 249/270 - After reducing the fraction, the answer is 83/90
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