Add 75/80 and 42/12
1st number: 75/80, 2nd number: 3 6/12
75/80 + 42/12 is 71/16.
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,
75/80 = 75 × 3/80 × 3 = 225/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
42/12 = 42 × 20/12 × 20 = 840/240 - Add the two like fractions:
225/240 + 840/240 = 225 + 840/240 = 1065/240 - 1065/240 simplified gives 71/16
- So, 75/80 + 42/12 = 71/16
In mixed form: 47/16
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