Add 75/80 and 45/28
1st number: 75/80, 2nd number: 1 17/28
75/80 + 45/28 is 285/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
75/80 = 75 × 7/80 × 7 = 525/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
45/28 = 45 × 20/28 × 20 = 900/560 - Add the two like fractions:
525/560 + 900/560 = 525 + 900/560 = 1425/560 - 1425/560 simplified gives 285/112
- So, 75/80 + 45/28 = 285/112
In mixed form: 261/112
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