Add 9/12 and 18/70
9/12 + 18/70 is 141/140.
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,
9/12 = 9 × 35/12 × 35 = 315/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
18/70 = 18 × 6/70 × 6 = 108/420 - Add the two like fractions:
315/420 + 108/420 = 315 + 108/420 = 423/420 - 423/420 simplified gives 141/140
- So, 9/12 + 18/70 = 141/140
In mixed form: 11/140
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