Add 42/81 and 63/40
1st number: 42/81, 2nd number: 1 23/40
42/81 + 63/40 is 2261/1080.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
42/81 = 42 × 40/81 × 40 = 1680/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
63/40 = 63 × 81/40 × 81 = 5103/3240 - Add the two like fractions:
1680/3240 + 5103/3240 = 1680 + 5103/3240 = 6783/3240 - 6783/3240 simplified gives 2261/1080
- So, 42/81 + 63/40 = 2261/1080
In mixed form: 2101/1080
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