Add 45/40 and 90/28
1st number: 1 5/40, 2nd number: 3 6/28
45/40 + 90/28 is 243/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
45/40 = 45 × 7/40 × 7 = 315/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
90/28 = 90 × 10/28 × 10 = 900/280 - Add the two like fractions:
315/280 + 900/280 = 315 + 900/280 = 1215/280 - 1215/280 simplified gives 243/56
- So, 45/40 + 90/28 = 243/56
In mixed form: 419/56
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