Add 54/81 and 28/40
54/81 + 28/40 is 41/30.
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,
54/81 = 54 × 40/81 × 40 = 2160/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
28/40 = 28 × 81/40 × 81 = 2268/3240 - Add the two like fractions:
2160/3240 + 2268/3240 = 2160 + 2268/3240 = 4428/3240 - 4428/3240 simplified gives 41/30
- So, 54/81 + 28/40 = 41/30
In mixed form: 111/30
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