Add 15/28 and 20/48
15/28 + 20/48 is 20/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
15/28 = 15 × 12/28 × 12 = 180/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
20/48 = 20 × 7/48 × 7 = 140/336 - Add the two like fractions:
180/336 + 140/336 = 180 + 140/336 = 320/336 - 320/336 simplified gives 20/21
- So, 15/28 + 20/48 = 20/21
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