Add 45/81 and 35/40
45/81 + 35/40 is 103/72.
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,
45/81 = 45 × 40/81 × 40 = 1800/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
35/40 = 35 × 81/40 × 81 = 2835/3240 - Add the two like fractions:
1800/3240 + 2835/3240 = 1800 + 2835/3240 = 4635/3240 - 4635/3240 simplified gives 103/72
- So, 45/81 + 35/40 = 103/72
In mixed form: 131/72
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