Subtract 27/10 from 42/2
1st number: 21 0/2, 2nd number: 2 7/10
42/2 - 27/10 is 183/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
42/2 = 42 × 5/2 × 5 = 210/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
27/10 = 27 × 1/10 × 1 = 27/10 - Subtract the two like fractions:
210/10 - 27/10 = 210 - 27/10 = 183/10 - In mixed form: 183/10
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