Add 18/45 and 36/20
1st number: 18/45, 2nd number: 1 16/20
18/45 + 36/20 is 11/5.
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,
36/20 = 36 × 9/20 × 9 = 324/180 - Add the two like fractions:
72/180 + 324/180 = 72 + 324/180 = 396/180 - 396/180 simplified gives 11/5
- So, 18/45 + 36/20 = 11/5
In mixed form: 21/5
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