Add 54/70 and 20/40
54/70 + 20/40 is 89/70.
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,
54/70 = 54 × 4/70 × 4 = 216/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
20/40 = 20 × 7/40 × 7 = 140/280 - Add the two like fractions:
216/280 + 140/280 = 216 + 140/280 = 356/280 - 356/280 simplified gives 89/70
- So, 54/70 + 20/40 = 89/70
In mixed form: 119/70
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