Add 15/18 and 60/80
15/18 + 60/80 is 19/12.
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,
15/18 = 15 × 40/18 × 40 = 600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
60/80 = 60 × 9/80 × 9 = 540/720 - Add the two like fractions:
600/720 + 540/720 = 600 + 540/720 = 1140/720 - 1140/720 simplified gives 19/12
- So, 15/18 + 60/80 = 19/12
In mixed form: 17/12
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