Answers

Add 75/7 and 75/90

1^st number: 10 5/7, 2^nd number: 75/90

75/7 + 75/90 is 485/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 7 × 90 = 630,
   75/7 = 75 × 90/7 × 90 = 6750/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   75/90 = 75 × 7/90 × 7 = 525/630
4. Add the two like fractions:
   6750/630 + 525/630 = 6750 + 525/630 = 7275/630
5. 7275/630 simplified gives 485/42
6. So, 75/7 + 75/90 = 485/42
   In mixed form: 1123/42

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