Add 72/4 and 81/5
1st number: 18 0/4, 2nd number: 16 1/5
72/4 + 81/5 is 171/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
72/4 = 72 × 5/4 × 5 = 360/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
81/5 = 81 × 4/5 × 4 = 324/20 - Add the two like fractions:
360/20 + 324/20 = 360 + 324/20 = 684/20 - 684/20 simplified gives 171/5
- So, 72/4 + 81/5 = 171/5
In mixed form: 341/5
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