Add 70/30 and 7/21
1st number: 2 10/30, 2nd number: 7/21
70/30 + 7/21 is 8/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
7/21 = 7 × 10/21 × 10 = 70/210 - Add the two like fractions:
490/210 + 70/210 = 490 + 70/210 = 560/210 - 560/210 simplified gives 8/3
- So, 70/30 + 7/21 = 8/3
In mixed form: 22/3
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