Add 70/84 and 70/21
1st number: 70/84, 2nd number: 3 7/21
70/84 + 70/21 is 25/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
70/21 = 70 × 4/21 × 4 = 280/84 - Add the two like fractions:
70/84 + 280/84 = 70 + 280/84 = 350/84 - 350/84 simplified gives 25/6
- So, 70/84 + 70/21 = 25/6
In mixed form: 41/6
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