Add 27/18 and 45/70
1st number: 1 9/18, 2nd number: 45/70
27/18 + 45/70 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
27/18 = 27 × 35/18 × 35 = 945/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Add the two like fractions:
945/630 + 405/630 = 945 + 405/630 = 1350/630 - 1350/630 simplified gives 15/7
- So, 27/18 + 45/70 = 15/7
In mixed form: 21/7
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