Add 70/21 and 40/14
1st number: 3 7/21, 2nd number: 2 12/14
70/21 + 40/14 is 130/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
70/21 = 70 × 2/21 × 2 = 140/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
40/14 = 40 × 3/14 × 3 = 120/42 - Add the two like fractions:
140/42 + 120/42 = 140 + 120/42 = 260/42 - 260/42 simplified gives 130/21
- So, 70/21 + 40/14 = 130/21
In mixed form: 64/21
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