Answers

Add 21/45 and 70/63

1^st number: 21/45, 2^nd number: 1 7/63

21/45 + 70/63 is 71/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   21/45 = 21 × 7/45 × 7 = 147/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   70/63 = 70 × 5/63 × 5 = 350/315
4. Add the two like fractions:
   147/315 + 350/315 = 147 + 350/315 = 497/315
5. 497/315 simplified gives 71/45
6. So, 21/45 + 70/63 = 71/45
   In mixed form: 126/45

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