Add 42/28 and 20/5
1st number: 1 14/28, 2nd number: 4 0/5
42/28 + 20/5 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
42/28 = 42 × 5/28 × 5 = 210/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
20/5 = 20 × 28/5 × 28 = 560/140 - Add the two like fractions:
210/140 + 560/140 = 210 + 560/140 = 770/140 - 770/140 simplified gives 11/2
- So, 42/28 + 20/5 = 11/2
In mixed form: 51/2
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