Add 90/28 and 75/18
1st number: 3 6/28, 2nd number: 4 3/18
90/28 + 75/18 is 155/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
75/18 = 75 × 14/18 × 14 = 1050/252 - Add the two like fractions:
810/252 + 1050/252 = 810 + 1050/252 = 1860/252 - 1860/252 simplified gives 155/21
- So, 90/28 + 75/18 = 155/21
In mixed form: 78/21
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