Add 70/84 and 60/21
1st number: 70/84, 2nd number: 2 18/21
70/84 + 60/21 is 155/42.
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,
60/21 = 60 × 4/21 × 4 = 240/84 - Add the two like fractions:
70/84 + 240/84 = 70 + 240/84 = 310/84 - 310/84 simplified gives 155/42
- So, 70/84 + 60/21 = 155/42
In mixed form: 329/42
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