Add 45/80 and 21/54
45/80 + 21/54 is 137/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
45/80 = 45 × 27/80 × 27 = 1215/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
21/54 = 21 × 40/54 × 40 = 840/2160 - Add the two like fractions:
1215/2160 + 840/2160 = 1215 + 840/2160 = 2055/2160 - 2055/2160 simplified gives 137/144
- So, 45/80 + 21/54 = 137/144
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