Add 42/48 and 63/70
42/48 + 63/70 is 71/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 48 × 35 = 1680,
42/48 = 42 × 35/48 × 35 = 1470/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
63/70 = 63 × 24/70 × 24 = 1512/1680 - Add the two like fractions:
1470/1680 + 1512/1680 = 1470 + 1512/1680 = 2982/1680 - 2982/1680 simplified gives 71/40
- So, 42/48 + 63/70 = 71/40
In mixed form: 131/40
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