Add 20/5 and 70/28
1st number: 4 0/5, 2nd number: 2 14/28
20/5 + 70/28 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
20/5 = 20 × 28/5 × 28 = 560/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
70/28 = 70 × 5/28 × 5 = 350/140 - Add the two like fractions:
560/140 + 350/140 = 560 + 350/140 = 910/140 - 910/140 simplified gives 13/2
- So, 20/5 + 70/28 = 13/2
In mixed form: 61/2
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