Subtract 2/16 from 81/30
1st number: 2 21/30, 2nd number: 2/16
81/30 - 2/16 is 103/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
81/30 = 81 × 8/30 × 8 = 648/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
2/16 = 2 × 15/16 × 15 = 30/240 - Subtract the two like fractions:
648/240 - 30/240 = 648 - 30/240 = 618/240 - After reducing the fraction, the answer is 103/40
- In mixed form: 223/40
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