Answers

Add 70/63 and 21/60

1^st number: 1 7/63, 2^nd number: 21/60

70/63 + 21/60 is 263/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 60 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   70/63 = 70 × 20/63 × 20 = 1400/1260
3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
   21/60 = 21 × 21/60 × 21 = 441/1260
4. Add the two like fractions:
   1400/1260 + 441/1260 = 1400 + 441/1260 = 1841/1260
5. 1841/1260 simplified gives 263/180
6. So, 70/63 + 21/60 = 263/180
   In mixed form: 183/180

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