Add 7/18 and 42/45
7/18 + 42/45 is 119/90.
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,
7/18 = 7 × 5/18 × 5 = 35/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Add the two like fractions:
35/90 + 84/90 = 35 + 84/90 = 119/90 - So, 7/18 + 42/45 = 119/90
In mixed form: 129/90
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