Add 70/42 and 21/28
1st number: 1 28/42, 2nd number: 21/28
70/42 + 21/28 is 29/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
70/42 = 70 × 2/42 × 2 = 140/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
21/28 = 21 × 3/28 × 3 = 63/84 - Add the two like fractions:
140/84 + 63/84 = 140 + 63/84 = 203/84 - 203/84 simplified gives 29/12
- So, 70/42 + 21/28 = 29/12
In mixed form: 25/12
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