Add 18/30 and 54/90
18/30 + 54/90 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
18/30 = 18 × 3/30 × 3 = 54/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
54/90 = 54 × 1/90 × 1 = 54/90 - Add the two like fractions:
54/90 + 54/90 = 54 + 54/90 = 108/90 - 108/90 simplified gives 6/5
- So, 18/30 + 54/90 = 6/5
In mixed form: 11/5
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