Add 20/25 and 21/30
20/25 + 21/30 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
20/25 = 20 × 6/25 × 6 = 120/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
21/30 = 21 × 5/30 × 5 = 105/150 - Add the two like fractions:
120/150 + 105/150 = 120 + 105/150 = 225/150 - 225/150 simplified gives 3/2
- So, 20/25 + 21/30 = 3/2
In mixed form: 11/2
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