Answers

Add 30/28 and 70/45

1^st number: 1 2/28, 2^nd number: 1 25/45

30/28 + 70/45 is 331/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   30/28 = 30 × 45/28 × 45 = 1350/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   70/45 = 70 × 28/45 × 28 = 1960/1260
4. Add the two like fractions:
   1350/1260 + 1960/1260 = 1350 + 1960/1260 = 3310/1260
5. 3310/1260 simplified gives 331/126
6. So, 30/28 + 70/45 = 331/126
   In mixed form: 279/126

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