Add 70/40 and 49/28
1st number: 1 30/40, 2nd number: 1 21/28
70/40 + 49/28 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
49/28 = 49 × 10/28 × 10 = 490/280 - Add the two like fractions:
490/280 + 490/280 = 490 + 490/280 = 980/280 - 980/280 simplified gives 7/2
- So, 70/40 + 49/28 = 7/2
In mixed form: 31/2
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