Add 1/28 and 70/21
1st number: 1/28, 2nd number: 3 7/21
1/28 + 70/21 is 283/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
1/28 = 1 × 3/28 × 3 = 3/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
70/21 = 70 × 4/21 × 4 = 280/84 - Add the two like fractions:
3/84 + 280/84 = 3 + 280/84 = 283/84 - So, 1/28 + 70/21 = 283/84
In mixed form: 331/84
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