Add 70/2 and 80/42
1st number: 35 0/2, 2nd number: 1 38/42
70/2 + 80/42 is 775/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
70/2 = 70 × 21/2 × 21 = 1470/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
80/42 = 80 × 1/42 × 1 = 80/42 - Add the two like fractions:
1470/42 + 80/42 = 1470 + 80/42 = 1550/42 - 1550/42 simplified gives 775/21
- So, 70/2 + 80/42 = 775/21
In mixed form: 3619/21
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