Subtract 45/16 from 81/4
1st number: 20 1/4, 2nd number: 2 13/16
81/4 - 45/16 is 279/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 4 × 4 = 16,
81/4 = 81 × 4/4 × 4 = 324/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
45/16 = 45 × 1/16 × 1 = 45/16 - Subtract the two like fractions:
324/16 - 45/16 = 324 - 45/16 = 279/16 - In mixed form: 177/16
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