Add 81/15 and 20/80
1st number: 5 6/15, 2nd number: 20/80
81/15 + 20/80 is 113/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
81/15 = 81 × 16/15 × 16 = 1296/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
20/80 = 20 × 3/80 × 3 = 60/240 - Add the two like fractions:
1296/240 + 60/240 = 1296 + 60/240 = 1356/240 - 1356/240 simplified gives 113/20
- So, 81/15 + 20/80 = 113/20
In mixed form: 513/20
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