Add 28/20 and 42/35
1st number: 1 8/20, 2nd number: 1 7/35
28/20 + 42/35 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
28/20 = 28 × 7/20 × 7 = 196/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
42/35 = 42 × 4/35 × 4 = 168/140 - Add the two like fractions:
196/140 + 168/140 = 196 + 168/140 = 364/140 - 364/140 simplified gives 13/5
- So, 28/20 + 42/35 = 13/5
In mixed form: 23/5
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