Add 21/40 and 3/48
21/40 + 3/48 is 47/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 40 × 6 = 240,
21/40 = 21 × 6/40 × 6 = 126/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
3/48 = 3 × 5/48 × 5 = 15/240 - Add the two like fractions:
126/240 + 15/240 = 126 + 15/240 = 141/240 - 141/240 simplified gives 47/80
- So, 21/40 + 3/48 = 47/80
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