Add 21/9 and 10/40
1st number: 2 3/9, 2nd number: 10/40
21/9 + 10/40 is 31/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
21/9 = 21 × 40/9 × 40 = 840/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
10/40 = 10 × 9/40 × 9 = 90/360 - Add the two like fractions:
840/360 + 90/360 = 840 + 90/360 = 930/360 - 930/360 simplified gives 31/12
- So, 21/9 + 10/40 = 31/12
In mixed form: 27/12
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