Add 12/80 and 81/60
1st number: 12/80, 2nd number: 1 21/60
12/80 + 81/60 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
12/80 = 12 × 3/80 × 3 = 36/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
81/60 = 81 × 4/60 × 4 = 324/240 - Add the two like fractions:
36/240 + 324/240 = 36 + 324/240 = 360/240 - 360/240 simplified gives 3/2
- So, 12/80 + 81/60 = 3/2
In mixed form: 11/2
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