Add 18/20 and 9/45
18/20 + 9/45 is 11/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
18/20 = 18 × 9/20 × 9 = 162/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
9/45 = 9 × 4/45 × 4 = 36/180 - Add the two like fractions:
162/180 + 36/180 = 162 + 36/180 = 198/180 - 198/180 simplified gives 11/10
- So, 18/20 + 9/45 = 11/10
In mixed form: 11/10
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