Add 2/18 and 42/45
2/18 + 42/45 is 47/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
2/18 = 2 × 5/18 × 5 = 10/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Add the two like fractions:
10/90 + 84/90 = 10 + 84/90 = 94/90 - 94/90 simplified gives 47/45
- So, 2/18 + 42/45 = 47/45
In mixed form: 12/45
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