Answers

Add 72/70 and 84/20

1^st number: 1 2/70, 2^nd number: 4 4/20

72/70 + 84/20 is 183/35.

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,
   72/70 = 72 × 2/70 × 2 = 144/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   84/20 = 84 × 7/20 × 7 = 588/140
4. Add the two like fractions:
   144/140 + 588/140 = 144 + 588/140 = 732/140
5. 732/140 simplified gives 183/35
6. So, 72/70 + 84/20 = 183/35
   In mixed form: 58/35

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