Add 21/54 and 10/30
21/54 + 10/30 is 13/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
10/30 = 10 × 9/30 × 9 = 90/270 - Add the two like fractions:
105/270 + 90/270 = 105 + 90/270 = 195/270 - 195/270 simplified gives 13/18
- So, 21/54 + 10/30 = 13/18
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