Add 20/7 and 42/80
1st number: 2 6/7, 2nd number: 42/80
20/7 + 42/80 is 947/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
20/7 = 20 × 80/7 × 80 = 1600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560 - Add the two like fractions:
1600/560 + 294/560 = 1600 + 294/560 = 1894/560 - 1894/560 simplified gives 947/280
- So, 20/7 + 42/80 = 947/280
In mixed form: 3107/280
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