Answers

Add 28/21 and 48/70

1^st number: 1 7/21, 2^nd number: 48/70

28/21 + 48/70 is 212/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   28/21 = 28 × 10/21 × 10 = 280/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   48/70 = 48 × 3/70 × 3 = 144/210
4. Add the two like fractions:
   280/210 + 144/210 = 280 + 144/210 = 424/210
5. 424/210 simplified gives 212/105
6. So, 28/21 + 48/70 = 212/105
   In mixed form: 22/105

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