Answers

Add 42/15 and 70/98

1^st number: 2 12/15, 2^nd number: 70/98

42/15 + 70/98 is 123/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 98 is 1470
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1470
2. For the 1st fraction, since 15 × 98 = 1470,
   42/15 = 42 × 98/15 × 98 = 4116/1470
3. Likewise, for the 2nd fraction, since 98 × 15 = 1470,
   70/98 = 70 × 15/98 × 15 = 1050/1470
4. Add the two like fractions:
   4116/1470 + 1050/1470 = 4116 + 1050/1470 = 5166/1470
5. 5166/1470 simplified gives 123/35
6. So, 42/15 + 70/98 = 123/35
   In mixed form: 318/35

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