Add 24/40 and 21/81
24/40 + 21/81 is 116/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
24/40 = 24 × 81/40 × 81 = 1944/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
21/81 = 21 × 40/81 × 40 = 840/3240 - Add the two like fractions:
1944/3240 + 840/3240 = 1944 + 840/3240 = 2784/3240 - 2784/3240 simplified gives 116/135
- So, 24/40 + 21/81 = 116/135
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