Answers

Add 90/40 and 48/45

1^st number: 2 10/40, 2^nd number: 1 3/45

90/40 + 48/45 is 199/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 45 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   90/40 = 90 × 9/40 × 9 = 810/360
3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
   48/45 = 48 × 8/45 × 8 = 384/360
4. Add the two like fractions:
   810/360 + 384/360 = 810 + 384/360 = 1194/360
5. 1194/360 simplified gives 199/60
6. So, 90/40 + 48/45 = 199/60
   In mixed form: 319/60

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