Add 70/84 and 20/12
1st number: 70/84, 2nd number: 1 8/12
70/84 + 20/12 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
20/12 = 20 × 7/12 × 7 = 140/84 - Add the two like fractions:
70/84 + 140/84 = 70 + 140/84 = 210/84 - 210/84 simplified gives 5/2
- So, 70/84 + 20/12 = 5/2
In mixed form: 21/2
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