Add 21/40 and 28/6
1st number: 21/40, 2nd number: 4 4/6
21/40 + 28/6 is 623/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
28/6 = 28 × 20/6 × 20 = 560/120 - Add the two like fractions:
63/120 + 560/120 = 63 + 560/120 = 623/120 - So, 21/40 + 28/6 = 623/120
In mixed form: 523/120
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