Answers

Add 25/90 and 70/25

1^st number: 25/90, 2^nd number: 2 20/25

25/90 + 70/25 is 277/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 25 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 90 × 5 = 450,
   25/90 = 25 × 5/90 × 5 = 125/450
3. Likewise, for the 2nd fraction, since 25 × 18 = 450,
   70/25 = 70 × 18/25 × 18 = 1260/450
4. Add the two like fractions:
   125/450 + 1260/450 = 125 + 1260/450 = 1385/450
5. 1385/450 simplified gives 277/90
6. So, 25/90 + 70/25 = 277/90
   In mixed form: 37/90

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