Subtract 18/5 from 63/3
1st number: 21 0/3, 2nd number: 3 3/5
63/3 - 18/5 is 87/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
63/3 = 63 × 5/3 × 5 = 315/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
18/5 = 18 × 3/5 × 3 = 54/15 - Subtract the two like fractions:
315/15 - 54/15 = 315 - 54/15 = 261/15 - After reducing the fraction, the answer is 87/5
- In mixed form: 172/5
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