Answers

Add 54/40 and 72/63

1^st number: 1 14/40, 2^nd number: 1 9/63

54/40 + 72/63 is 349/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 63 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 40 × 63 = 2520,
   54/40 = 54 × 63/40 × 63 = 3402/2520
3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
   72/63 = 72 × 40/63 × 40 = 2880/2520
4. Add the two like fractions:
   3402/2520 + 2880/2520 = 3402 + 2880/2520 = 6282/2520
5. 6282/2520 simplified gives 349/140
6. So, 54/40 + 72/63 = 349/140
   In mixed form: 269/140

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