Answers

Add 10/7 and 54/40

1^st number: 1 3/7, 2^nd number: 1 14/40

10/7 + 54/40 is 389/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 7 × 40 = 280,
   10/7 = 10 × 40/7 × 40 = 400/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   54/40 = 54 × 7/40 × 7 = 378/280
4. Add the two like fractions:
   400/280 + 378/280 = 400 + 378/280 = 778/280
5. 778/280 simplified gives 389/140
6. So, 10/7 + 54/40 = 389/140
   In mixed form: 2109/140

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