Add 28/20 and 21/3
1st number: 1 8/20, 2nd number: 7 0/3
28/20 + 21/3 is 42/5.
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,
28/20 = 28 × 3/20 × 3 = 84/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
21/3 = 21 × 20/3 × 20 = 420/60 - Add the two like fractions:
84/60 + 420/60 = 84 + 420/60 = 504/60 - 504/60 simplified gives 42/5
- So, 28/20 + 21/3 = 42/5
In mixed form: 82/5
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