Add 3/28 and 70/40
1st number: 3/28, 2nd number: 1 30/40
3/28 + 70/40 is 13/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
3/28 = 3 × 10/28 × 10 = 30/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Add the two like fractions:
30/280 + 490/280 = 30 + 490/280 = 520/280 - 520/280 simplified gives 13/7
- So, 3/28 + 70/40 = 13/7
In mixed form: 16/7
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