Add 20/40 and 84/12
1st number: 20/40, 2nd number: 7 0/12
20/40 + 84/12 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
84/12 = 84 × 10/12 × 10 = 840/120 - Add the two like fractions:
60/120 + 840/120 = 60 + 840/120 = 900/120 - 900/120 simplified gives 15/2
- So, 20/40 + 84/12 = 15/2
In mixed form: 71/2
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