Answers

Add 49/70 and 72/20

1^st number: 49/70, 2^nd number: 3 12/20

49/70 + 72/20 is 43/10.

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,
   49/70 = 49 × 2/70 × 2 = 98/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   72/20 = 72 × 7/20 × 7 = 504/140
4. Add the two like fractions:
   98/140 + 504/140 = 98 + 504/140 = 602/140
5. 602/140 simplified gives 43/10
6. So, 49/70 + 72/20 = 43/10
   In mixed form: 43/10

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