Add 40/18 and 21/5
1st number: 2 4/18, 2nd number: 4 1/5
40/18 + 21/5 is 289/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
40/18 = 40 × 5/18 × 5 = 200/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
21/5 = 21 × 18/5 × 18 = 378/90 - Add the two like fractions:
200/90 + 378/90 = 200 + 378/90 = 578/90 - 578/90 simplified gives 289/45
- So, 40/18 + 21/5 = 289/45
In mixed form: 619/45
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