Add 54/3 and 81/90
1st number: 18 0/3, 2nd number: 81/90
54/3 + 81/90 is 189/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
54/3 = 54 × 30/3 × 30 = 1620/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
81/90 = 81 × 1/90 × 1 = 81/90 - Add the two like fractions:
1620/90 + 81/90 = 1620 + 81/90 = 1701/90 - 1701/90 simplified gives 189/10
- So, 54/3 + 81/90 = 189/10
In mixed form: 189/10
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