Subtract 45/10 from 21/3
1st number: 7 0/3, 2nd number: 4 5/10
21/3 - 45/10 is 5/2.
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,
45/10 = 45 × 3/10 × 3 = 135/30 - Subtract the two like fractions:
210/30 - 135/30 = 210 - 135/30 = 75/30 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
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