Add 18/54 and 21/80
18/54 + 21/80 is 143/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 54 × 40 = 2160,
18/54 = 18 × 40/54 × 40 = 720/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
21/80 = 21 × 27/80 × 27 = 567/2160 - Add the two like fractions:
720/2160 + 567/2160 = 720 + 567/2160 = 1287/2160 - 1287/2160 simplified gives 143/240
- So, 18/54 + 21/80 = 143/240
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