Answers

Add 45/80 and 72/63

1^st number: 45/80, 2^nd number: 1 9/63

45/80 + 72/63 is 191/112.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 63 is 5040
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5040
2. For the 1st fraction, since 80 × 63 = 5040,
   45/80 = 45 × 63/80 × 63 = 2835/5040
3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
   72/63 = 72 × 80/63 × 80 = 5760/5040
4. Add the two like fractions:
   2835/5040 + 5760/5040 = 2835 + 5760/5040 = 8595/5040
5. 8595/5040 simplified gives 191/112
6. So, 45/80 + 72/63 = 191/112
   In mixed form: 179/112

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