Add 72/54 and 30/40
1st number: 1 18/54, 2nd number: 30/40
72/54 + 30/40 is 25/12.
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,
72/54 = 72 × 20/54 × 20 = 1440/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
30/40 = 30 × 27/40 × 27 = 810/1080 - Add the two like fractions:
1440/1080 + 810/1080 = 1440 + 810/1080 = 2250/1080 - 2250/1080 simplified gives 25/12
- So, 72/54 + 30/40 = 25/12
In mixed form: 21/12
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