Add 28/40 and 45/54
28/40 + 45/54 is 23/15.
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,
28/40 = 28 × 27/40 × 27 = 756/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
45/54 = 45 × 20/54 × 20 = 900/1080 - Add the two like fractions:
756/1080 + 900/1080 = 756 + 900/1080 = 1656/1080 - 1656/1080 simplified gives 23/15
- So, 28/40 + 45/54 = 23/15
In mixed form: 18/15
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