Add 18/90 and 20/25
18/90 + 20/25 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
18/90 = 18 × 5/90 × 5 = 90/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
20/25 = 20 × 18/25 × 18 = 360/450 - Add the two like fractions:
90/450 + 360/450 = 90 + 360/450 = 450/450 - 450/450 simplified gives 1/1
- So, 18/90 + 20/25 = 1/1
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