Add 20/90 and 4/18
20/90 + 4/18 is 4/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Add the two like fractions:
20/90 + 20/90 = 20 + 20/90 = 40/90 - 40/90 simplified gives 4/9
- So, 20/90 + 4/18 = 4/9
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