Add 45/54 and 20/90
45/54 + 20/90 is 19/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
45/54 = 45 × 5/54 × 5 = 225/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
20/90 = 20 × 3/90 × 3 = 60/270 - Add the two like fractions:
225/270 + 60/270 = 225 + 60/270 = 285/270 - 285/270 simplified gives 19/18
- So, 45/54 + 20/90 = 19/18
In mixed form: 11/18
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