Add 30/54 and 21/90
30/54 + 21/90 is 71/90.
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,
30/54 = 30 × 5/54 × 5 = 150/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Add the two like fractions:
150/270 + 63/270 = 150 + 63/270 = 213/270 - 213/270 simplified gives 71/90
- So, 30/54 + 21/90 = 71/90
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