Add 21/90 and 30/50
21/90 + 30/50 is 5/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
21/90 = 21 × 5/90 × 5 = 105/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
30/50 = 30 × 9/50 × 9 = 270/450 - Add the two like fractions:
105/450 + 270/450 = 105 + 270/450 = 375/450 - 375/450 simplified gives 5/6
- So, 21/90 + 30/50 = 5/6
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