Add 18/90 and 84/28
1st number: 18/90, 2nd number: 3 0/28
18/90 + 84/28 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
18/90 = 18 × 14/90 × 14 = 252/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
84/28 = 84 × 45/28 × 45 = 3780/1260 - Add the two like fractions:
252/1260 + 3780/1260 = 252 + 3780/1260 = 4032/1260 - 4032/1260 simplified gives 16/5
- So, 18/90 + 84/28 = 16/5
In mixed form: 31/5
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