Add 18/20 and 90/25
1st number: 18/20, 2nd number: 3 15/25
18/20 + 90/25 is 9/2.
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,
90/25 = 90 × 4/25 × 4 = 360/100 - Add the two like fractions:
90/100 + 360/100 = 90 + 360/100 = 450/100 - 450/100 simplified gives 9/2
- So, 18/20 + 90/25 = 9/2
In mixed form: 41/2
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