Answers

Add 72/70 and 28/72

1^st number: 1 2/70, 2^nd number: 28/72

72/70 + 28/72 is 893/630.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 72 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 70 × 36 = 2520,
   72/70 = 72 × 36/70 × 36 = 2592/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   28/72 = 28 × 35/72 × 35 = 980/2520
4. Add the two like fractions:
   2592/2520 + 980/2520 = 2592 + 980/2520 = 3572/2520
5. 3572/2520 simplified gives 893/630
6. So, 72/70 + 28/72 = 893/630
   In mixed form: 1263/630

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