Add 81/5 and 42/18
1st number: 16 1/5, 2nd number: 2 6/18
81/5 + 42/18 is 278/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
81/5 = 81 × 18/5 × 18 = 1458/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Add the two like fractions:
1458/90 + 210/90 = 1458 + 210/90 = 1668/90 - 1668/90 simplified gives 278/15
- So, 81/5 + 42/18 = 278/15
In mixed form: 188/15
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