Add 30/80 and 45/20
1st number: 30/80, 2nd number: 2 5/20
30/80 + 45/20 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
30/80 = 30 × 1/80 × 1 = 30/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
45/20 = 45 × 4/20 × 4 = 180/80 - Add the two like fractions:
30/80 + 180/80 = 30 + 180/80 = 210/80 - 210/80 simplified gives 21/8
- So, 30/80 + 45/20 = 21/8
In mixed form: 25/8
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