Add 81/12 and 20/80
1st number: 6 9/12, 2nd number: 20/80
81/12 + 20/80 is 7/1.
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,
81/12 = 81 × 20/12 × 20 = 1620/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
20/80 = 20 × 3/80 × 3 = 60/240 - Add the two like fractions:
1620/240 + 60/240 = 1620 + 60/240 = 1680/240 - 1680/240 simplified gives 7/1
- So, 81/12 + 20/80 = 7/1
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