Answers

Add 27/70 and 15/60

27/70 + 15/60 is 89/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   27/70 = 27 × 6/70 × 6 = 162/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   15/60 = 15 × 7/60 × 7 = 105/420
4. Add the two like fractions:
   162/420 + 105/420 = 162 + 105/420 = 267/420
5. 267/420 simplified gives 89/140
6. So, 27/70 + 15/60 = 89/140

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