Answers

Add 90/35 and 45/20

1^st number: 2 20/35, 2^nd number: 2 5/20

90/35 + 45/20 is 135/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 35 × 4 = 140,
   90/35 = 90 × 4/35 × 4 = 360/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   45/20 = 45 × 7/20 × 7 = 315/140
4. Add the two like fractions:
   360/140 + 315/140 = 360 + 315/140 = 675/140
5. 675/140 simplified gives 135/28
6. So, 90/35 + 45/20 = 135/28
   In mixed form: 423/28

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