Answers

Add 70/49 and 21/90

1^st number: 1 21/49, 2^nd number: 21/90

70/49 + 21/90 is 349/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 90 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 49 × 90 = 4410,
   70/49 = 70 × 90/49 × 90 = 6300/4410
3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
   21/90 = 21 × 49/90 × 49 = 1029/4410
4. Add the two like fractions:
   6300/4410 + 1029/4410 = 6300 + 1029/4410 = 7329/4410
5. 7329/4410 simplified gives 349/210
6. So, 70/49 + 21/90 = 349/210
   In mixed form: 1139/210

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