Answers

Add 70/50 and 35/90

1^st number: 1 20/50, 2^nd number: 35/90

70/50 + 35/90 is 161/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 50 × 9 = 450,
   70/50 = 70 × 9/50 × 9 = 630/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   35/90 = 35 × 5/90 × 5 = 175/450
4. Add the two like fractions:
   630/450 + 175/450 = 630 + 175/450 = 805/450
5. 805/450 simplified gives 161/90
6. So, 70/50 + 35/90 = 161/90
   In mixed form: 171/90

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