Add 54/70 and 42/40
1st number: 54/70, 2nd number: 1 2/40
54/70 + 42/40 is 51/28.
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,
42/40 = 42 × 7/40 × 7 = 294/280 - Add the two like fractions:
216/280 + 294/280 = 216 + 294/280 = 510/280 - 510/280 simplified gives 51/28
- So, 54/70 + 42/40 = 51/28
In mixed form: 123/28
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