Add 27/42 and 81/30
1st number: 27/42, 2nd number: 2 21/30
27/42 + 81/30 is 117/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
27/42 = 27 × 5/42 × 5 = 135/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
81/30 = 81 × 7/30 × 7 = 567/210 - Add the two like fractions:
135/210 + 567/210 = 135 + 567/210 = 702/210 - 702/210 simplified gives 117/35
- So, 27/42 + 81/30 = 117/35
In mixed form: 312/35
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