Answers

Add 72/49 and 42/90

1^st number: 1 23/49, 2^nd number: 42/90

72/49 + 42/90 is 1423/735.

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,
   72/49 = 72 × 90/49 × 90 = 6480/4410
3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
   42/90 = 42 × 49/90 × 49 = 2058/4410
4. Add the two like fractions:
   6480/4410 + 2058/4410 = 6480 + 2058/4410 = 8538/4410
5. 8538/4410 simplified gives 1423/735
6. So, 72/49 + 42/90 = 1423/735
   In mixed form: 1688/735

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