Add 12/18 and 20/80
12/18 + 20/80 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
12/18 = 12 × 40/18 × 40 = 480/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Add the two like fractions:
480/720 + 180/720 = 480 + 180/720 = 660/720 - 660/720 simplified gives 11/12
- So, 12/18 + 20/80 = 11/12
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