Answers

Add 75/28 and 42/40

1^st number: 2 19/28, 2^nd number: 1 2/40

75/28 + 42/40 is 261/70.

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,
   75/28 = 75 × 10/28 × 10 = 750/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   42/40 = 42 × 7/40 × 7 = 294/280
4. Add the two like fractions:
   750/280 + 294/280 = 750 + 294/280 = 1044/280
5. 1044/280 simplified gives 261/70
6. So, 75/28 + 42/40 = 261/70
   In mixed form: 351/70

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