Add 70/21 and 84/16
1st number: 3 7/21, 2nd number: 5 4/16
70/21 + 84/16 is 103/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
70/21 = 70 × 16/21 × 16 = 1120/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
84/16 = 84 × 21/16 × 21 = 1764/336 - Add the two like fractions:
1120/336 + 1764/336 = 1120 + 1764/336 = 2884/336 - 2884/336 simplified gives 103/12
- So, 70/21 + 84/16 = 103/12
In mixed form: 87/12
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