Answers

Add 12/70 and 1/84

12/70 + 1/84 is 11/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   12/70 = 12 × 6/70 × 6 = 72/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   1/84 = 1 × 5/84 × 5 = 5/420
4. Add the two like fractions:
   72/420 + 5/420 = 72 + 5/420 = 77/420
5. 77/420 simplified gives 11/60
6. So, 12/70 + 1/84 = 11/60

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