Add 40/21 and 12/28
1st number: 1 19/21, 2nd number: 12/28
40/21 + 12/28 is 7/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
40/21 = 40 × 4/21 × 4 = 160/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
12/28 = 12 × 3/28 × 3 = 36/84 - Add the two like fractions:
160/84 + 36/84 = 160 + 36/84 = 196/84 - 196/84 simplified gives 7/3
- So, 40/21 + 12/28 = 7/3
In mixed form: 21/3
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