Add 30/54 and 45/40
1st number: 30/54, 2nd number: 1 5/40
30/54 + 45/40 is 121/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
30/54 = 30 × 20/54 × 20 = 600/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
45/40 = 45 × 27/40 × 27 = 1215/1080 - Add the two like fractions:
600/1080 + 1215/1080 = 600 + 1215/1080 = 1815/1080 - 1815/1080 simplified gives 121/72
- So, 30/54 + 45/40 = 121/72
In mixed form: 149/72
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