Add 81/20 and 7/12
1st number: 4 1/20, 2nd number: 7/12
81/20 + 7/12 is 139/30.
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,
81/20 = 81 × 3/20 × 3 = 243/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
7/12 = 7 × 5/12 × 5 = 35/60 - Add the two like fractions:
243/60 + 35/60 = 243 + 35/60 = 278/60 - 278/60 simplified gives 139/30
- So, 81/20 + 7/12 = 139/30
In mixed form: 419/30
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