Answers

Add 90/45 and 50/7

1^st number: 2 0/45, 2^nd number: 7 1/7

90/45 + 50/7 is 64/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 7 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   90/45 = 90 × 7/45 × 7 = 630/315
3. Likewise, for the 2nd fraction, since 7 × 45 = 315,
   50/7 = 50 × 45/7 × 45 = 2250/315
4. Add the two like fractions:
   630/315 + 2250/315 = 630 + 2250/315 = 2880/315
5. 2880/315 simplified gives 64/7
6. So, 90/45 + 50/7 = 64/7
   In mixed form: 91/7

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