Add 18/90 and 40/28
1st number: 18/90, 2nd number: 1 12/28
18/90 + 40/28 is 57/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
18/90 = 18 × 14/90 × 14 = 252/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
40/28 = 40 × 45/28 × 45 = 1800/1260 - Add the two like fractions:
252/1260 + 1800/1260 = 252 + 1800/1260 = 2052/1260 - 2052/1260 simplified gives 57/35
- So, 18/90 + 40/28 = 57/35
In mixed form: 122/35
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