Add 84/70 and 21/3
1st number: 1 14/70, 2nd number: 7 0/3
84/70 + 21/3 is 41/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
84/70 = 84 × 3/70 × 3 = 252/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
21/3 = 21 × 70/3 × 70 = 1470/210 - Add the two like fractions:
252/210 + 1470/210 = 252 + 1470/210 = 1722/210 - 1722/210 simplified gives 41/5
- So, 84/70 + 21/3 = 41/5
In mixed form: 81/5
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