Add 18/45 and 3/20
18/45 + 3/20 is 11/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
18/45 = 18 × 4/45 × 4 = 72/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
3/20 = 3 × 9/20 × 9 = 27/180 - Add the two like fractions:
72/180 + 27/180 = 72 + 27/180 = 99/180 - 99/180 simplified gives 11/20
- So, 18/45 + 3/20 = 11/20
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