Add 21/80 and 40/3
1st number: 21/80, 2nd number: 13 1/3
21/80 + 40/3 is 3263/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 3 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
21/80 = 21 × 3/80 × 3 = 63/240 - Likewise, for the 2nd fraction, since 3 × 80 = 240,
40/3 = 40 × 80/3 × 80 = 3200/240 - Add the two like fractions:
63/240 + 3200/240 = 63 + 3200/240 = 3263/240 - So, 21/80 + 40/3 = 3263/240
In mixed form: 13143/240
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