Add 3/81 and 12/70
3/81 + 12/70 is 197/945.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
3/81 = 3 × 70/81 × 70 = 210/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
12/70 = 12 × 81/70 × 81 = 972/5670 - Add the two like fractions:
210/5670 + 972/5670 = 210 + 972/5670 = 1182/5670 - 1182/5670 simplified gives 197/945
- So, 3/81 + 12/70 = 197/945
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