Add 30/3 and 21/40
1st number: 10 0/3, 2nd number: 21/40
30/3 + 21/40 is 421/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
30/3 = 30 × 40/3 × 40 = 1200/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Add the two like fractions:
1200/120 + 63/120 = 1200 + 63/120 = 1263/120 - 1263/120 simplified gives 421/40
- So, 30/3 + 21/40 = 421/40
In mixed form: 1021/40
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