Add 18/27 and 42/45
18/27 + 42/45 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
18/27 = 18 × 5/27 × 5 = 90/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
42/45 = 42 × 3/45 × 3 = 126/135 - Add the two like fractions:
90/135 + 126/135 = 90 + 126/135 = 216/135 - 216/135 simplified gives 8/5
- So, 18/27 + 42/45 = 8/5
In mixed form: 13/5
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