Add 80/84 and 70/10
1st number: 80/84, 2nd number: 7 0/10
80/84 + 70/10 is 167/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
80/84 = 80 × 5/84 × 5 = 400/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
70/10 = 70 × 42/10 × 42 = 2940/420 - Add the two like fractions:
400/420 + 2940/420 = 400 + 2940/420 = 3340/420 - 3340/420 simplified gives 167/21
- So, 80/84 + 70/10 = 167/21
In mixed form: 720/21
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