Answers

Add 48/21 and 64/90

1^st number: 2 6/21, 2^nd number: 64/90

48/21 + 64/90 is 944/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 21 × 30 = 630,
   48/21 = 48 × 30/21 × 30 = 1440/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   64/90 = 64 × 7/90 × 7 = 448/630
4. Add the two like fractions:
   1440/630 + 448/630 = 1440 + 448/630 = 1888/630
5. 1888/630 simplified gives 944/315
6. So, 48/21 + 64/90 = 944/315
   In mixed form: 2314/315

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