Subtract 81/10 from 63/3
1st number: 21 0/3, 2nd number: 8 1/10
63/3 - 81/10 is 129/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
63/3 = 63 × 10/3 × 10 = 630/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
81/10 = 81 × 3/10 × 3 = 243/30 - Subtract the two like fractions:
630/30 - 243/30 = 630 - 243/30 = 387/30 - After reducing the fraction, the answer is 129/10
- In mixed form: 129/10
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