Answers

Add 90/8 and 40/70

1^st number: 11 2/8, 2^nd number: 40/70

90/8 + 40/70 is 331/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 8 × 35 = 280,
   90/8 = 90 × 35/8 × 35 = 3150/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   40/70 = 40 × 4/70 × 4 = 160/280
4. Add the two like fractions:
   3150/280 + 160/280 = 3150 + 160/280 = 3310/280
5. 3310/280 simplified gives 331/28
6. So, 90/8 + 40/70 = 331/28
   In mixed form: 1123/28

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