Add 30/50 and 9/20
30/50 + 9/20 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
30/50 = 30 × 2/50 × 2 = 60/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
9/20 = 9 × 5/20 × 5 = 45/100 - Add the two like fractions:
60/100 + 45/100 = 60 + 45/100 = 105/100 - 105/100 simplified gives 21/20
- So, 30/50 + 9/20 = 21/20
In mixed form: 11/20
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