Answers

Add 54/35 and 63/72

1^st number: 1 19/35, 2^nd number: 63/72

54/35 + 63/72 is 677/280.

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,
   54/35 = 54 × 72/35 × 72 = 3888/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   63/72 = 63 × 35/72 × 35 = 2205/2520
4. Add the two like fractions:
   3888/2520 + 2205/2520 = 3888 + 2205/2520 = 6093/2520
5. 6093/2520 simplified gives 677/280
6. So, 54/35 + 63/72 = 677/280
   In mixed form: 2117/280

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