Add 81/6 and 40/20
1st number: 13 3/6, 2nd number: 2 0/20
81/6 + 40/20 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
81/6 = 81 × 10/6 × 10 = 810/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Add the two like fractions:
810/60 + 120/60 = 810 + 120/60 = 930/60 - 930/60 simplified gives 31/2
- So, 81/6 + 40/20 = 31/2
In mixed form: 151/2
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