Answers

Add 98/70 and 16/90

1^st number: 1 28/70, 2^nd number: 16/90

98/70 + 16/90 is 71/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   98/70 = 98 × 9/70 × 9 = 882/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   16/90 = 16 × 7/90 × 7 = 112/630
4. Add the two like fractions:
   882/630 + 112/630 = 882 + 112/630 = 994/630
5. 994/630 simplified gives 71/45
6. So, 98/70 + 16/90 = 71/45
   In mixed form: 126/45

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