Add 9/10 and 80/42
1st number: 9/10, 2nd number: 1 38/42
9/10 + 80/42 is 589/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
9/10 = 9 × 21/10 × 21 = 189/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
80/42 = 80 × 5/42 × 5 = 400/210 - Add the two like fractions:
189/210 + 400/210 = 189 + 400/210 = 589/210 - So, 9/10 + 80/42 = 589/210
In mixed form: 2169/210
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