Answers

Add 54/45 and 21/98

1^st number: 1 9/45, 2^nd number: 21/98

54/45 + 21/98 is 99/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 98 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 45 × 98 = 4410,
   54/45 = 54 × 98/45 × 98 = 5292/4410
3. Likewise, for the 2nd fraction, since 98 × 45 = 4410,
   21/98 = 21 × 45/98 × 45 = 945/4410
4. Add the two like fractions:
   5292/4410 + 945/4410 = 5292 + 945/4410 = 6237/4410
5. 6237/4410 simplified gives 99/70
6. So, 54/45 + 21/98 = 99/70
   In mixed form: 129/70

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