Add 90/3 and 80/42
1st number: 30 0/3, 2nd number: 1 38/42
90/3 + 80/42 is 670/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
90/3 = 90 × 14/3 × 14 = 1260/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
80/42 = 80 × 1/42 × 1 = 80/42 - Add the two like fractions:
1260/42 + 80/42 = 1260 + 80/42 = 1340/42 - 1340/42 simplified gives 670/21
- So, 90/3 + 80/42 = 670/21
In mixed form: 3119/21
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