Add 28/35 and 54/20
1st number: 28/35, 2nd number: 2 14/20
28/35 + 54/20 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
28/35 = 28 × 4/35 × 4 = 112/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
54/20 = 54 × 7/20 × 7 = 378/140 - Add the two like fractions:
112/140 + 378/140 = 112 + 378/140 = 490/140 - 490/140 simplified gives 7/2
- So, 28/35 + 54/20 = 7/2
In mixed form: 31/2
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