Add 18/30 and 12/45
18/30 + 12/45 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 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 45 × 2 = 90,
12/45 = 12 × 2/45 × 2 = 24/90 - Add the two like fractions:
54/90 + 24/90 = 54 + 24/90 = 78/90 - 78/90 simplified gives 13/15
- So, 18/30 + 12/45 = 13/15
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