Subtract 15/10 from 84/4
1st number: 21 0/4, 2nd number: 1 5/10
84/4 - 15/10 is 39/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
84/4 = 84 × 5/4 × 5 = 420/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Subtract the two like fractions:
420/20 - 30/20 = 420 - 30/20 = 390/20 - After reducing the fraction, the answer is 39/2
- In mixed form: 191/2
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