Add 21/48 and 7/20
21/48 + 7/20 is 63/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
21/48 = 21 × 5/48 × 5 = 105/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
7/20 = 7 × 12/20 × 12 = 84/240 - Add the two like fractions:
105/240 + 84/240 = 105 + 84/240 = 189/240 - 189/240 simplified gives 63/80
- So, 21/48 + 7/20 = 63/80
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