Answers

Add 72/80 and 98/56

1^st number: 72/80, 2^nd number: 1 42/56

72/80 + 98/56 is 53/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 56 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   72/80 = 72 × 7/80 × 7 = 504/560
3. Likewise, for the 2nd fraction, since 56 × 10 = 560,
   98/56 = 98 × 10/56 × 10 = 980/560
4. Add the two like fractions:
   504/560 + 980/560 = 504 + 980/560 = 1484/560
5. 1484/560 simplified gives 53/20
6. So, 72/80 + 98/56 = 53/20
   In mixed form: 213/20

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