Add 21/20 and 12/80
1st number: 1 1/20, 2nd number: 12/80
21/20 + 12/80 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
21/20 = 21 × 4/20 × 4 = 84/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Add the two like fractions:
84/80 + 12/80 = 84 + 12/80 = 96/80 - 96/80 simplified gives 6/5
- So, 21/20 + 12/80 = 6/5
In mixed form: 11/5
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