Add 21/50 and 18/20
21/50 + 18/20 is 33/25.
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,
21/50 = 21 × 2/50 × 2 = 42/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
18/20 = 18 × 5/20 × 5 = 90/100 - Add the two like fractions:
42/100 + 90/100 = 42 + 90/100 = 132/100 - 132/100 simplified gives 33/25
- So, 21/50 + 18/20 = 33/25
In mixed form: 18/25
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