Add 90/15 and 84/54
1st number: 6 0/15, 2nd number: 1 30/54
90/15 + 84/54 is 68/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
90/15 = 90 × 18/15 × 18 = 1620/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
84/54 = 84 × 5/54 × 5 = 420/270 - Add the two like fractions:
1620/270 + 420/270 = 1620 + 420/270 = 2040/270 - 2040/270 simplified gives 68/9
- So, 90/15 + 84/54 = 68/9
In mixed form: 75/9
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