Add 42/20 and 80/90
1st number: 2 2/20, 2nd number: 80/90
42/20 + 80/90 is 269/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
42/20 = 42 × 9/20 × 9 = 378/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
80/90 = 80 × 2/90 × 2 = 160/180 - Add the two like fractions:
378/180 + 160/180 = 378 + 160/180 = 538/180 - 538/180 simplified gives 269/90
- So, 42/20 + 80/90 = 269/90
In mixed form: 289/90
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