Add 18/36 and 20/45
18/36 + 20/45 is 17/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
18/36 = 18 × 5/36 × 5 = 90/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
20/45 = 20 × 4/45 × 4 = 80/180 - Add the two like fractions:
90/180 + 80/180 = 90 + 80/180 = 170/180 - 170/180 simplified gives 17/18
- So, 18/36 + 20/45 = 17/18
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