Add 12/3 and 90/20
1st number: 4 0/3, 2nd number: 4 10/20
12/3 + 90/20 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
12/3 = 12 × 20/3 × 20 = 240/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Add the two like fractions:
240/60 + 270/60 = 240 + 270/60 = 510/60 - 510/60 simplified gives 17/2
- So, 12/3 + 90/20 = 17/2
In mixed form: 81/2
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