Subtract 40/81 from 45/28
1st number: 1 17/28, 2nd number: 40/81
45/28 - 40/81 is 2525/2268.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
45/28 = 45 × 81/28 × 81 = 3645/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
40/81 = 40 × 28/81 × 28 = 1120/2268 - Subtract the two like fractions:
3645/2268 - 1120/2268 = 3645 - 1120/2268 = 2525/2268 - In mixed form: 1257/2268
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