Add 27/36 and 90/70
1st number: 27/36, 2nd number: 1 20/70
27/36 + 90/70 is 57/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
27/36 = 27 × 35/36 × 35 = 945/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
90/70 = 90 × 18/70 × 18 = 1620/1260 - Add the two like fractions:
945/1260 + 1620/1260 = 945 + 1620/1260 = 2565/1260 - 2565/1260 simplified gives 57/28
- So, 27/36 + 90/70 = 57/28
In mixed form: 21/28
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