Add 81/6 and 90/40
1st number: 13 3/6, 2nd number: 2 10/40
81/6 + 90/40 is 63/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
81/6 = 81 × 20/6 × 20 = 1620/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
90/40 = 90 × 3/40 × 3 = 270/120 - Add the two like fractions:
1620/120 + 270/120 = 1620 + 270/120 = 1890/120 - 1890/120 simplified gives 63/4
- So, 81/6 + 90/40 = 63/4
In mixed form: 153/4
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