Add 3/2 and 80/21
1st number: 1 1/2, 2nd number: 3 17/21
3/2 + 80/21 is 223/42.
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,
3/2 = 3 × 21/2 × 21 = 63/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
80/21 = 80 × 2/21 × 2 = 160/42 - Add the two like fractions:
63/42 + 160/42 = 63 + 160/42 = 223/42 - So, 3/2 + 80/21 = 223/42
In mixed form: 513/42
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