Add 15/40 and 3/54
15/40 + 3/54 is 31/72.
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,
15/40 = 15 × 27/40 × 27 = 405/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
3/54 = 3 × 20/54 × 20 = 60/1080 - Add the two like fractions:
405/1080 + 60/1080 = 405 + 60/1080 = 465/1080 - 465/1080 simplified gives 31/72
- So, 15/40 + 3/54 = 31/72
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