Answers

Add 21/70 and 63/32

1^st number: 21/70, 2^nd number: 1 31/32

21/70 + 63/32 is 363/160.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 32 is 1120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1120
2. For the 1st fraction, since 70 × 16 = 1120,
   21/70 = 21 × 16/70 × 16 = 336/1120
3. Likewise, for the 2nd fraction, since 32 × 35 = 1120,
   63/32 = 63 × 35/32 × 35 = 2205/1120
4. Add the two like fractions:
   336/1120 + 2205/1120 = 336 + 2205/1120 = 2541/1120
5. 2541/1120 simplified gives 363/160
6. So, 21/70 + 63/32 = 363/160
   In mixed form: 243/160

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