Answers

Add 98/90 and 28/72

1^st number: 1 8/90, 2^nd number: 28/72

98/90 + 28/72 is 133/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 90 × 4 = 360,
   98/90 = 98 × 4/90 × 4 = 392/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   28/72 = 28 × 5/72 × 5 = 140/360
4. Add the two like fractions:
   392/360 + 140/360 = 392 + 140/360 = 532/360
5. 532/360 simplified gives 133/90
6. So, 98/90 + 28/72 = 133/90
   In mixed form: 143/90

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