Add 20/70 and 80/30
1st number: 20/70, 2nd number: 2 20/30
20/70 + 80/30 is 62/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
20/70 = 20 × 3/70 × 3 = 60/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
80/30 = 80 × 7/30 × 7 = 560/210 - Add the two like fractions:
60/210 + 560/210 = 60 + 560/210 = 620/210 - 620/210 simplified gives 62/21
- So, 20/70 + 80/30 = 62/21
In mixed form: 220/21
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