Add 20/81 and 45/28
1st number: 20/81, 2nd number: 1 17/28
20/81 + 45/28 is 4205/2268.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 28 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
20/81 = 20 × 28/81 × 28 = 560/2268 - Likewise, for the 2nd fraction, since 28 × 81 = 2268,
45/28 = 45 × 81/28 × 81 = 3645/2268 - Add the two like fractions:
560/2268 + 3645/2268 = 560 + 3645/2268 = 4205/2268 - So, 20/81 + 45/28 = 4205/2268
In mixed form: 11937/2268
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