Add 63/70 and 28/40
63/70 + 28/40 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
63/70 = 63 × 4/70 × 4 = 252/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
28/40 = 28 × 7/40 × 7 = 196/280 - Add the two like fractions:
252/280 + 196/280 = 252 + 196/280 = 448/280 - 448/280 simplified gives 8/5
- So, 63/70 + 28/40 = 8/5
In mixed form: 13/5
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