Add 75/90 and 28/20
1st number: 75/90, 2nd number: 1 8/20
75/90 + 28/20 is 67/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
75/90 = 75 × 2/90 × 2 = 150/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
28/20 = 28 × 9/20 × 9 = 252/180 - Add the two like fractions:
150/180 + 252/180 = 150 + 252/180 = 402/180 - 402/180 simplified gives 67/30
- So, 75/90 + 28/20 = 67/30
In mixed form: 27/30
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