Add 10/20 and 7/28
10/20 + 7/28 is 3/4.
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,
10/20 = 10 × 7/20 × 7 = 70/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
7/28 = 7 × 5/28 × 5 = 35/140 - Add the two like fractions:
70/140 + 35/140 = 70 + 35/140 = 105/140 - 105/140 simplified gives 3/4
- So, 10/20 + 7/28 = 3/4
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