Add 80/2 and 5/21
1st number: 40 0/2, 2nd number: 5/21
80/2 + 5/21 is 845/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
80/2 = 80 × 21/2 × 21 = 1680/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
5/21 = 5 × 2/21 × 2 = 10/42 - Add the two like fractions:
1680/42 + 10/42 = 1680 + 10/42 = 1690/42 - 1690/42 simplified gives 845/21
- So, 80/2 + 5/21 = 845/21
In mixed form: 405/21
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