Add 28/20 and 18/80
1st number: 1 8/20, 2nd number: 18/80
28/20 + 18/80 is 13/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
28/20 = 28 × 4/20 × 4 = 112/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Add the two like fractions:
112/80 + 18/80 = 112 + 18/80 = 130/80 - 130/80 simplified gives 13/8
- So, 28/20 + 18/80 = 13/8
In mixed form: 15/8
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