Answers

Add 90/10 and 75/70

1^st number: 9 0/10, 2^nd number: 1 5/70

90/10 + 75/70 is 141/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 70 is 70
   
   Next, find the equivalent fraction of both fractional numbers with denominator 70
2. For the 1st fraction, since 10 × 7 = 70,
   90/10 = 90 × 7/10 × 7 = 630/70
3. Likewise, for the 2nd fraction, since 70 × 1 = 70,
   75/70 = 75 × 1/70 × 1 = 75/70
4. Add the two like fractions:
   630/70 + 75/70 = 630 + 75/70 = 705/70
5. 705/70 simplified gives 141/14
6. So, 90/10 + 75/70 = 141/14
   In mixed form: 101/14

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