Add 30/20 and 18/80
1st number: 1 10/20, 2nd number: 18/80
30/20 + 18/80 is 69/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
30/20 = 30 × 4/20 × 4 = 120/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Add the two like fractions:
120/80 + 18/80 = 120 + 18/80 = 138/80 - 138/80 simplified gives 69/40
- So, 30/20 + 18/80 = 69/40
In mixed form: 129/40
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