Add 28/20 and 80/25
1st number: 1 8/20, 2nd number: 3 5/25
28/20 + 80/25 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
28/20 = 28 × 5/20 × 5 = 140/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
80/25 = 80 × 4/25 × 4 = 320/100 - Add the two like fractions:
140/100 + 320/100 = 140 + 320/100 = 460/100 - 460/100 simplified gives 23/5
- So, 28/20 + 80/25 = 23/5
In mixed form: 43/5
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