Add 20/40 and 45/54
20/40 + 45/54 is 4/3.
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,
20/40 = 20 × 27/40 × 27 = 540/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
45/54 = 45 × 20/54 × 20 = 900/1080 - Add the two like fractions:
540/1080 + 900/1080 = 540 + 900/1080 = 1440/1080 - 1440/1080 simplified gives 4/3
- So, 20/40 + 45/54 = 4/3
In mixed form: 11/3
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