Subtract 28/10 from 21/3
1st number: 7 0/3, 2nd number: 2 8/10
21/3 - 28/10 is 21/5.
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,
21/3 = 21 × 10/3 × 10 = 210/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
28/10 = 28 × 3/10 × 3 = 84/30 - Subtract the two like fractions:
210/30 - 84/30 = 210 - 84/30 = 126/30 - After reducing the fraction, the answer is 21/5
- In mixed form: 41/5
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