Add 12/42 and 70/49
1st number: 12/42, 2nd number: 1 21/49
12/42 + 70/49 is 12/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
12/42 = 12 × 7/42 × 7 = 84/294 - Likewise, for the 2nd fraction, since 49 × 6 = 294,
70/49 = 70 × 6/49 × 6 = 420/294 - Add the two like fractions:
84/294 + 420/294 = 84 + 420/294 = 504/294 - 504/294 simplified gives 12/7
- So, 12/42 + 70/49 = 12/7
In mixed form: 15/7
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