Add 27/12 and 90/70
1st number: 2 3/12, 2nd number: 1 20/70
27/12 + 90/70 is 99/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
27/12 = 27 × 35/12 × 35 = 945/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
90/70 = 90 × 6/70 × 6 = 540/420 - Add the two like fractions:
945/420 + 540/420 = 945 + 540/420 = 1485/420 - 1485/420 simplified gives 99/28
- So, 27/12 + 90/70 = 99/28
In mixed form: 315/28
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