Subtract 18/10 from 63/21
1st number: 3 0/21, 2nd number: 1 8/10
63/21 - 18/10 is 6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
63/21 = 63 × 10/21 × 10 = 630/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
18/10 = 18 × 21/10 × 21 = 378/210 - Subtract the two like fractions:
630/210 - 378/210 = 630 - 378/210 = 252/210 - After reducing the fraction, the answer is 6/5
- In mixed form: 11/5
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