Subtract 21/54 from 63/30
1st number: 2 3/30, 2nd number: 21/54
63/30 - 21/54 is 77/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
63/30 = 63 × 9/30 × 9 = 567/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Subtract the two like fractions:
567/270 - 105/270 = 567 - 105/270 = 462/270 - After reducing the fraction, the answer is 77/45
- In mixed form: 132/45
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