Add 45/40 and 21/54
1st number: 1 5/40, 2nd number: 21/54
45/40 + 21/54 is 109/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
45/40 = 45 × 27/40 × 27 = 1215/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
21/54 = 21 × 20/54 × 20 = 420/1080 - Add the two like fractions:
1215/1080 + 420/1080 = 1215 + 420/1080 = 1635/1080 - 1635/1080 simplified gives 109/72
- So, 45/40 + 21/54 = 109/72
In mixed form: 137/72
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