Add 20/45 and 25/90
20/45 + 25/90 is 13/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
25/90 = 25 × 1/90 × 1 = 25/90 - Add the two like fractions:
40/90 + 25/90 = 40 + 25/90 = 65/90 - 65/90 simplified gives 13/18
- So, 20/45 + 25/90 = 13/18
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