Answers

Add 27/70 and 28/20

1^st number: 27/70, 2^nd number: 1 8/20

27/70 + 28/20 is 25/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 70 × 2 = 140,
   27/70 = 27 × 2/70 × 2 = 54/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   28/20 = 28 × 7/20 × 7 = 196/140
4. Add the two like fractions:
   54/140 + 196/140 = 54 + 196/140 = 250/140
5. 250/140 simplified gives 25/14
6. So, 27/70 + 28/20 = 25/14
   In mixed form: 111/14

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