Answers

Add 21/70 and 98/54

1^st number: 21/70, 2^nd number: 1 44/54

21/70 + 98/54 is 571/270.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 54 is 1890
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1890
2. For the 1st fraction, since 70 × 27 = 1890,
   21/70 = 21 × 27/70 × 27 = 567/1890
3. Likewise, for the 2nd fraction, since 54 × 35 = 1890,
   98/54 = 98 × 35/54 × 35 = 3430/1890
4. Add the two like fractions:
   567/1890 + 3430/1890 = 567 + 3430/1890 = 3997/1890
5. 3997/1890 simplified gives 571/270
6. So, 21/70 + 98/54 = 571/270
   In mixed form: 231/270

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