Answers

Add 90/7 and 40/9

1^st number: 12 6/7, 2^nd number: 4 4/9

90/7 + 40/9 is 1090/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 9 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 7 × 9 = 63,
   90/7 = 90 × 9/7 × 9 = 810/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   40/9 = 40 × 7/9 × 7 = 280/63
4. Add the two like fractions:
   810/63 + 280/63 = 810 + 280/63 = 1090/63
5. So, 90/7 + 40/9 = 1090/63
   In mixed form: 1719/63

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