Add 2/21 and 75/70
1st number: 2/21, 2nd number: 1 5/70
2/21 + 75/70 is 7/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
2/21 = 2 × 10/21 × 10 = 20/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
75/70 = 75 × 3/70 × 3 = 225/210 - Add the two like fractions:
20/210 + 225/210 = 20 + 225/210 = 245/210 - 245/210 simplified gives 7/6
- So, 2/21 + 75/70 = 7/6
In mixed form: 11/6
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