Add 42/12 and 84/80
1st number: 3 6/12, 2nd number: 1 4/80
42/12 + 84/80 is 91/20.
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,
42/12 = 42 × 20/12 × 20 = 840/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
84/80 = 84 × 3/80 × 3 = 252/240 - Add the two like fractions:
840/240 + 252/240 = 840 + 252/240 = 1092/240 - 1092/240 simplified gives 91/20
- So, 42/12 + 84/80 = 91/20
In mixed form: 411/20
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