Add 10/20 and 21/3
1st number: 10/20, 2nd number: 7 0/3
10/20 + 21/3 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
10/20 = 10 × 3/20 × 3 = 30/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
21/3 = 21 × 20/3 × 20 = 420/60 - Add the two like fractions:
30/60 + 420/60 = 30 + 420/60 = 450/60 - 450/60 simplified gives 15/2
- So, 10/20 + 21/3 = 15/2
In mixed form: 71/2
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