Answers

Add 42/40 and 54/98

1^st number: 1 2/40, 2^nd number: 54/98

42/40 + 54/98 is 1569/980.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 98 is 1960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1960
2. For the 1st fraction, since 40 × 49 = 1960,
   42/40 = 42 × 49/40 × 49 = 2058/1960
3. Likewise, for the 2nd fraction, since 98 × 20 = 1960,
   54/98 = 54 × 20/98 × 20 = 1080/1960
4. Add the two like fractions:
   2058/1960 + 1080/1960 = 2058 + 1080/1960 = 3138/1960
5. 3138/1960 simplified gives 1569/980
6. So, 42/40 + 54/98 = 1569/980
   In mixed form: 1589/980

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