Answers

Add 21/70 and 56/45

1^st number: 21/70, 2^nd number: 1 11/45

21/70 + 56/45 is 139/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   21/70 = 21 × 9/70 × 9 = 189/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   56/45 = 56 × 14/45 × 14 = 784/630
4. Add the two like fractions:
   189/630 + 784/630 = 189 + 784/630 = 973/630
5. 973/630 simplified gives 139/90
6. So, 21/70 + 56/45 = 139/90
   In mixed form: 149/90

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