Answers

Add 63/35 and 72/80

1^st number: 1 28/35, 2^nd number: 72/80

63/35 + 72/80 is 27/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 35 × 16 = 560,
   63/35 = 63 × 16/35 × 16 = 1008/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   72/80 = 72 × 7/80 × 7 = 504/560
4. Add the two like fractions:
   1008/560 + 504/560 = 1008 + 504/560 = 1512/560
5. 1512/560 simplified gives 27/10
6. So, 63/35 + 72/80 = 27/10
   In mixed form: 27/10

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