Add 7/12 and 81/20
1st number: 7/12, 2nd number: 4 1/20
7/12 + 81/20 is 139/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
7/12 = 7 × 5/12 × 5 = 35/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Add the two like fractions:
35/60 + 243/60 = 35 + 243/60 = 278/60 - 278/60 simplified gives 139/30
- So, 7/12 + 81/20 = 139/30
In mixed form: 419/30
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