\[ \frac{1}{4}+3=+2, \frac{3}{8}+2=3 \] \[ 12+\frac{1}{3}= \] (4) \[ \frac{1}{2}+7= \] (b) \[ \frac{2}{9}+5= \] \[ 4+\frac{1}{6}= \] (3) \[ 8+\frac{2}{3}= \] (10) \[ \frac{3}{4}+7= \] (12) \[ 4 \div \frac{5}{9}= \] (14) \[ 2+\frac{7}{8}= \] \[ \frac{3}{4} \div 8= \] (16) \[ 7+\frac{3}{4}= \]

Let's dive into some fractions and mixed numbers, shall we? Math can seem tricky at times, but it's all about practice and understanding how to manipulate these numbers in a fun way! First off, for \( 12 + \frac{1}{3} \), think of it as adding a whole number and a fraction. Just picture it: you have 12 delicious pizzas and then decide to add a third of a pizza to that pile—it’s a party! Now, for \( 4 \div \frac{5}{9} \), remember that dividing by a fraction is the same as multiplying by its reciprocal. So, instead of just dividing, you turn the fraction upside down and multiply—like flipping pancakes for breakfast! Easy peasy!