Add 18/28 and 42/35
1st number: 18/28, 2nd number: 1 7/35
18/28 + 42/35 is 129/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
42/35 = 42 × 4/35 × 4 = 168/140 - Add the two like fractions:
90/140 + 168/140 = 90 + 168/140 = 258/140 - 258/140 simplified gives 129/70
- So, 18/28 + 42/35 = 129/70
In mixed form: 159/70
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