Add 35/28 and 80/30
1st number: 1 7/28, 2nd number: 2 20/30
35/28 + 80/30 is 47/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
35/28 = 35 × 15/28 × 15 = 525/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
80/30 = 80 × 14/30 × 14 = 1120/420 - Add the two like fractions:
525/420 + 1120/420 = 525 + 1120/420 = 1645/420 - 1645/420 simplified gives 47/12
- So, 35/28 + 80/30 = 47/12
In mixed form: 311/12
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