Answers

Add 42/28 and 42/40

1^st number: 1 14/28, 2^nd number: 1 2/40

42/28 + 42/40 is 51/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 28 × 10 = 280,
   42/28 = 42 × 10/28 × 10 = 420/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   42/40 = 42 × 7/40 × 7 = 294/280
4. Add the two like fractions:
   420/280 + 294/280 = 420 + 294/280 = 714/280
5. 714/280 simplified gives 51/20
6. So, 42/28 + 42/40 = 51/20
   In mixed form: 211/20

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