Add 70/5 and 21/84
1st number: 14 0/5, 2nd number: 21/84
70/5 + 21/84 is 57/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
70/5 = 70 × 84/5 × 84 = 5880/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
21/84 = 21 × 5/84 × 5 = 105/420 - Add the two like fractions:
5880/420 + 105/420 = 5880 + 105/420 = 5985/420 - 5985/420 simplified gives 57/4
- So, 70/5 + 21/84 = 57/4
In mixed form: 141/4
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