Add 15/20 and 20/25
15/20 + 20/25 is 31/20.
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,
15/20 = 15 × 5/20 × 5 = 75/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
20/25 = 20 × 4/25 × 4 = 80/100 - Add the two like fractions:
75/100 + 80/100 = 75 + 80/100 = 155/100 - 155/100 simplified gives 31/20
- So, 15/20 + 20/25 = 31/20
In mixed form: 111/20
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