Add 15/30 and 21/50
15/30 + 21/50 is 23/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
15/30 = 15 × 5/30 × 5 = 75/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
21/50 = 21 × 3/50 × 3 = 63/150 - Add the two like fractions:
75/150 + 63/150 = 75 + 63/150 = 138/150 - 138/150 simplified gives 23/25
- So, 15/30 + 21/50 = 23/25
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