Add 72/80 and 3/12
72/80 + 3/12 is 23/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
72/80 = 72 × 3/80 × 3 = 216/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
3/12 = 3 × 20/12 × 20 = 60/240 - Add the two like fractions:
216/240 + 60/240 = 216 + 60/240 = 276/240 - 276/240 simplified gives 23/20
- So, 72/80 + 3/12 = 23/20
In mixed form: 13/20
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