Add 21/10 and 70/20
1st number: 2 1/10, 2nd number: 3 10/20
21/10 + 70/20 is 28/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
21/10 = 21 × 2/10 × 2 = 42/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
70/20 = 70 × 1/20 × 1 = 70/20 - Add the two like fractions:
42/20 + 70/20 = 42 + 70/20 = 112/20 - 112/20 simplified gives 28/5
- So, 21/10 + 70/20 = 28/5
In mixed form: 53/5
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