Add 72/12 and 40/80
1st number: 6 0/12, 2nd number: 40/80
72/12 + 40/80 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
72/12 = 72 × 20/12 × 20 = 1440/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
40/80 = 40 × 3/80 × 3 = 120/240 - Add the two like fractions:
1440/240 + 120/240 = 1440 + 120/240 = 1560/240 - 1560/240 simplified gives 13/2
- So, 72/12 + 40/80 = 13/2
In mixed form: 61/2
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