Answers

Add 90/30 and 48/21

1^st number: 3 0/30, 2^nd number: 2 6/21

90/30 + 48/21 is 37/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   90/30 = 90 × 7/30 × 7 = 630/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   48/21 = 48 × 10/21 × 10 = 480/210
4. Add the two like fractions:
   630/210 + 480/210 = 630 + 480/210 = 1110/210
5. 1110/210 simplified gives 37/7
6. So, 90/30 + 48/21 = 37/7
   In mixed form: 52/7

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