Add 21/3 and 30/70
1st number: 7 0/3, 2nd number: 30/70
21/3 + 30/70 is 52/7.
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,
21/3 = 21 × 70/3 × 70 = 1470/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
30/70 = 30 × 3/70 × 3 = 90/210 - Add the two like fractions:
1470/210 + 90/210 = 1470 + 90/210 = 1560/210 - 1560/210 simplified gives 52/7
- So, 21/3 + 30/70 = 52/7
In mixed form: 73/7
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