Answers

Add 49/40 and 42/30

1^st number: 1 9/40, 2^nd number: 1 12/30

49/40 + 42/30 is 21/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 30 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   49/40 = 49 × 3/40 × 3 = 147/120
3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
   42/30 = 42 × 4/30 × 4 = 168/120
4. Add the two like fractions:
   147/120 + 168/120 = 147 + 168/120 = 315/120
5. 315/120 simplified gives 21/8
6. So, 49/40 + 42/30 = 21/8
   In mixed form: 25/8

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