Add 42/80 and 35/70
42/80 + 35/70 is 41/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
35/70 = 35 × 8/70 × 8 = 280/560 - Add the two like fractions:
294/560 + 280/560 = 294 + 280/560 = 574/560 - 574/560 simplified gives 41/40
- So, 42/80 + 35/70 = 41/40
In mixed form: 11/40
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