Answers

Add 98/35 and 45/72

1^st number: 2 28/35, 2^nd number: 45/72

98/35 + 45/72 is 137/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 72 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 35 × 72 = 2520,
   98/35 = 98 × 72/35 × 72 = 7056/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   45/72 = 45 × 35/72 × 35 = 1575/2520
4. Add the two like fractions:
   7056/2520 + 1575/2520 = 7056 + 1575/2520 = 8631/2520
5. 8631/2520 simplified gives 137/40
6. So, 98/35 + 45/72 = 137/40
   In mixed form: 317/40

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