Add 12/2 and 90/20
1st number: 6 0/2, 2nd number: 4 10/20
12/2 + 90/20 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
12/2 = 12 × 10/2 × 10 = 120/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
90/20 = 90 × 1/20 × 1 = 90/20 - Add the two like fractions:
120/20 + 90/20 = 120 + 90/20 = 210/20 - 210/20 simplified gives 21/2
- So, 12/2 + 90/20 = 21/2
In mixed form: 101/2
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