Answers

Add 28/63 and 20/25

28/63 + 20/25 is 56/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 25 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 63 × 25 = 1575,
   28/63 = 28 × 25/63 × 25 = 700/1575
3. Likewise, for the 2nd fraction, since 25 × 63 = 1575,
   20/25 = 20 × 63/25 × 63 = 1260/1575
4. Add the two like fractions:
   700/1575 + 1260/1575 = 700 + 1260/1575 = 1960/1575
5. 1960/1575 simplified gives 56/45
6. So, 28/63 + 20/25 = 56/45
   In mixed form: 111/45

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