Add 21/60 and 4/80
21/60 + 4/80 is 2/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
21/60 = 21 × 4/60 × 4 = 84/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
4/80 = 4 × 3/80 × 3 = 12/240 - Add the two like fractions:
84/240 + 12/240 = 84 + 12/240 = 96/240 - 96/240 simplified gives 2/5
- So, 21/60 + 4/80 = 2/5
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