Answers

Add 25/90 and 72/56

1^st number: 25/90, 2^nd number: 1 16/56

25/90 + 72/56 is 197/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 56 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 90 × 28 = 2520,
   25/90 = 25 × 28/90 × 28 = 700/2520
3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
   72/56 = 72 × 45/56 × 45 = 3240/2520
4. Add the two like fractions:
   700/2520 + 3240/2520 = 700 + 3240/2520 = 3940/2520
5. 3940/2520 simplified gives 197/126
6. So, 25/90 + 72/56 = 197/126
   In mixed form: 171/126

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