Add 21/54 and 8/90
21/54 + 8/90 is 43/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 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 90 × 3 = 270,
8/90 = 8 × 3/90 × 3 = 24/270 - Add the two like fractions:
105/270 + 24/270 = 105 + 24/270 = 129/270 - 129/270 simplified gives 43/90
- So, 21/54 + 8/90 = 43/90
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