Add 20/12 and 21/80
1st number: 1 8/12, 2nd number: 21/80
20/12 + 21/80 is 463/240.
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,
20/12 = 20 × 20/12 × 20 = 400/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Add the two like fractions:
400/240 + 63/240 = 400 + 63/240 = 463/240 - So, 20/12 + 21/80 = 463/240
In mixed form: 1223/240
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