Add 18/45 and 7/15
18/45 + 7/15 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
18/45 = 18 × 1/45 × 1 = 18/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45 - Add the two like fractions:
18/45 + 21/45 = 18 + 21/45 = 39/45 - 39/45 simplified gives 13/15
- So, 18/45 + 7/15 = 13/15
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