Add 42/54 and 1/90
42/54 + 1/90 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,
42/54 = 42 × 5/54 × 5 = 210/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
1/90 = 1 × 3/90 × 3 = 3/270 - Add the two like fractions:
210/270 + 3/270 = 210 + 3/270 = 213/270 - 213/270 simplified gives 71/90
- So, 42/54 + 1/90 = 71/90
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