Subtract 27/30 from 42/16
1st number: 2 10/16, 2nd number: 27/30
42/16 - 27/30 is 69/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
42/16 = 42 × 15/16 × 15 = 630/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
27/30 = 27 × 8/30 × 8 = 216/240 - Subtract the two like fractions:
630/240 - 216/240 = 630 - 216/240 = 414/240 - After reducing the fraction, the answer is 69/40
- In mixed form: 129/40
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