Add 70/4 and 21/12
1st number: 17 2/4, 2nd number: 1 9/12
70/4 + 21/12 is 77/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
70/4 = 70 × 3/4 × 3 = 210/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12 - Add the two like fractions:
210/12 + 21/12 = 210 + 21/12 = 231/12 - 231/12 simplified gives 77/4
- So, 70/4 + 21/12 = 77/4
In mixed form: 191/4
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