Add 42/49 and 63/80
42/49 + 63/80 is 921/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 49 × 80 = 3920,
42/49 = 42 × 80/49 × 80 = 3360/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
63/80 = 63 × 49/80 × 49 = 3087/3920 - Add the two like fractions:
3360/3920 + 3087/3920 = 3360 + 3087/3920 = 6447/3920 - 6447/3920 simplified gives 921/560
- So, 42/49 + 63/80 = 921/560
In mixed form: 1361/560
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