Add 3/18 and 90/28
1st number: 3/18, 2nd number: 3 6/28
3/18 + 90/28 is 71/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
3/18 = 3 × 14/18 × 14 = 42/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Add the two like fractions:
42/252 + 810/252 = 42 + 810/252 = 852/252 - 852/252 simplified gives 71/21
- So, 3/18 + 90/28 = 71/21
In mixed form: 38/21
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