Answers

Add 42/35 and 63/16

1^st number: 1 7/35, 2^nd number: 3 15/16

42/35 + 63/16 is 411/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 16 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 35 × 16 = 560,
   42/35 = 42 × 16/35 × 16 = 672/560
3. Likewise, for the 2nd fraction, since 16 × 35 = 560,
   63/16 = 63 × 35/16 × 35 = 2205/560
4. Add the two like fractions:
   672/560 + 2205/560 = 672 + 2205/560 = 2877/560
5. 2877/560 simplified gives 411/80
6. So, 42/35 + 63/16 = 411/80
   In mixed form: 511/80

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