Add 84/28 and 15/90
1st number: 3 0/28, 2nd number: 15/90
84/28 + 15/90 is 19/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
84/28 = 84 × 45/28 × 45 = 3780/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
15/90 = 15 × 14/90 × 14 = 210/1260 - Add the two like fractions:
3780/1260 + 210/1260 = 3780 + 210/1260 = 3990/1260 - 3990/1260 simplified gives 19/6
- So, 84/28 + 15/90 = 19/6
In mixed form: 31/6
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