Add 18/80 and 45/20
1st number: 18/80, 2nd number: 2 5/20
18/80 + 45/20 is 99/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
45/20 = 45 × 4/20 × 4 = 180/80 - Add the two like fractions:
18/80 + 180/80 = 18 + 180/80 = 198/80 - 198/80 simplified gives 99/40
- So, 18/80 + 45/20 = 99/40
In mixed form: 219/40
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