Add 20/80 and 12/9
1st number: 20/80, 2nd number: 1 3/9
20/80 + 12/9 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
12/9 = 12 × 80/9 × 80 = 960/720 - Add the two like fractions:
180/720 + 960/720 = 180 + 960/720 = 1140/720 - 1140/720 simplified gives 19/12
- So, 20/80 + 12/9 = 19/12
In mixed form: 17/12
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