Add 20/60 and 84/90
20/60 + 84/90 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
20/60 = 20 × 3/60 × 3 = 60/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
84/90 = 84 × 2/90 × 2 = 168/180 - Add the two like fractions:
60/180 + 168/180 = 60 + 168/180 = 228/180 - 228/180 simplified gives 19/15
- So, 20/60 + 84/90 = 19/15
In mixed form: 14/15
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