Add 20/30 and 84/90
20/30 + 84/90 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Add the two like fractions:
60/90 + 84/90 = 60 + 84/90 = 144/90 - 144/90 simplified gives 8/5
- So, 20/30 + 84/90 = 8/5
In mixed form: 13/5
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