Add 40/20 and 81/12
1st number: 2 0/20, 2nd number: 6 9/12
40/20 + 81/12 is 35/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
81/12 = 81 × 5/12 × 5 = 405/60 - Add the two like fractions:
120/60 + 405/60 = 120 + 405/60 = 525/60 - 525/60 simplified gives 35/4
- So, 40/20 + 81/12 = 35/4
In mixed form: 83/4
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