Add 42/18 and 45/30
1st number: 2 6/18, 2nd number: 1 15/30
42/18 + 45/30 is 23/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
45/30 = 45 × 3/30 × 3 = 135/90 - Add the two like fractions:
210/90 + 135/90 = 210 + 135/90 = 345/90 - 345/90 simplified gives 23/6
- So, 42/18 + 45/30 = 23/6
In mixed form: 35/6
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