Add 30/20 and 63/28
1st number: 1 10/20, 2nd number: 2 7/28
30/20 + 63/28 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
30/20 = 30 × 7/20 × 7 = 210/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
63/28 = 63 × 5/28 × 5 = 315/140 - Add the two like fractions:
210/140 + 315/140 = 210 + 315/140 = 525/140 - 525/140 simplified gives 15/4
- So, 30/20 + 63/28 = 15/4
In mixed form: 33/4
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