Add 28/9 and 42/40
1st number: 3 1/9, 2nd number: 1 2/40
28/9 + 42/40 is 749/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
28/9 = 28 × 40/9 × 40 = 1120/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
42/40 = 42 × 9/40 × 9 = 378/360 - Add the two like fractions:
1120/360 + 378/360 = 1120 + 378/360 = 1498/360 - 1498/360 simplified gives 749/180
- So, 28/9 + 42/40 = 749/180
In mixed form: 429/180
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