Answers

Add 21/90 and 98/56

1^st number: 21/90, 2^nd number: 1 42/56

21/90 + 98/56 is 119/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 56 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 90 × 28 = 2520,
   21/90 = 21 × 28/90 × 28 = 588/2520
3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
   98/56 = 98 × 45/56 × 45 = 4410/2520
4. Add the two like fractions:
   588/2520 + 4410/2520 = 588 + 4410/2520 = 4998/2520
5. 4998/2520 simplified gives 119/60
6. So, 21/90 + 98/56 = 119/60
   In mixed form: 159/60

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