Add 20/3 and 90/70
1st number: 6 2/3, 2nd number: 1 20/70
20/3 + 90/70 is 167/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 3 × 70 = 210,
20/3 = 20 × 70/3 × 70 = 1400/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
90/70 = 90 × 3/70 × 3 = 270/210 - Add the two like fractions:
1400/210 + 270/210 = 1400 + 270/210 = 1670/210 - 1670/210 simplified gives 167/21
- So, 20/3 + 90/70 = 167/21
In mixed form: 720/21
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