Add 27/30 and 54/42
1st number: 27/30, 2nd number: 1 12/42
27/30 + 54/42 is 153/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
27/30 = 27 × 7/30 × 7 = 189/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
54/42 = 54 × 5/42 × 5 = 270/210 - Add the two like fractions:
189/210 + 270/210 = 189 + 270/210 = 459/210 - 459/210 simplified gives 153/70
- So, 27/30 + 54/42 = 153/70
In mixed form: 213/70
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