Add 40/12 and 81/80
1st number: 3 4/12, 2nd number: 1 1/80
40/12 + 81/80 is 1043/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
40/12 = 40 × 20/12 × 20 = 800/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
81/80 = 81 × 3/80 × 3 = 243/240 - Add the two like fractions:
800/240 + 243/240 = 800 + 243/240 = 1043/240 - So, 40/12 + 81/80 = 1043/240
In mixed form: 483/240
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