Add 8/18 and 20/45
8/18 + 20/45 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
8/18 = 8 × 5/18 × 5 = 40/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Add the two like fractions:
40/90 + 40/90 = 40 + 40/90 = 80/90 - 80/90 simplified gives 8/9
- So, 8/18 + 20/45 = 8/9
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