Add 18/20 and 81/25
1st number: 18/20, 2nd number: 3 6/25
18/20 + 81/25 is 207/50.
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,
18/20 = 18 × 5/20 × 5 = 90/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
81/25 = 81 × 4/25 × 4 = 324/100 - Add the two like fractions:
90/100 + 324/100 = 90 + 324/100 = 414/100 - 414/100 simplified gives 207/50
- So, 18/20 + 81/25 = 207/50
In mixed form: 47/50
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