Add 20/3 and 90/12
1st number: 6 2/3, 2nd number: 7 6/12
20/3 + 90/12 is 85/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
20/3 = 20 × 4/3 × 4 = 80/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
90/12 = 90 × 1/12 × 1 = 90/12 - Add the two like fractions:
80/12 + 90/12 = 80 + 90/12 = 170/12 - 170/12 simplified gives 85/6
- So, 20/3 + 90/12 = 85/6
In mixed form: 141/6
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