Add 45/54 and 15/20
45/54 + 15/20 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
45/54 = 45 × 10/54 × 10 = 450/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
15/20 = 15 × 27/20 × 27 = 405/540 - Add the two like fractions:
450/540 + 405/540 = 450 + 405/540 = 855/540 - 855/540 simplified gives 19/12
- So, 45/54 + 15/20 = 19/12
In mixed form: 17/12
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