Answers

Add 6/20 and 49/70

6/20 + 49/70 is 1/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   6/20 = 6 × 7/20 × 7 = 42/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   49/70 = 49 × 2/70 × 2 = 98/140
4. Add the two like fractions:
   42/140 + 98/140 = 42 + 98/140 = 140/140
5. 140/140 simplified gives 1/1
6. So, 6/20 + 49/70 = 1/1

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