Add 40/18 and 42/20
1st number: 2 4/18, 2nd number: 2 2/20
40/18 + 42/20 is 389/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
40/18 = 40 × 10/18 × 10 = 400/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
42/20 = 42 × 9/20 × 9 = 378/180 - Add the two like fractions:
400/180 + 378/180 = 400 + 378/180 = 778/180 - 778/180 simplified gives 389/90
- So, 40/18 + 42/20 = 389/90
In mixed form: 429/90
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