Add 28/35 and 20/60
28/35 + 20/60 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
28/35 = 28 × 12/35 × 12 = 336/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Add the two like fractions:
336/420 + 140/420 = 336 + 140/420 = 476/420 - 476/420 simplified gives 17/15
- So, 28/35 + 20/60 = 17/15
In mixed form: 12/15
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